C. MULTIPLE CHOICE

 

EXERCISE 1. Chose the best answer.
1. He has been very interested in doing research on _______ since he was at high school.
A. biology B. biological C. biologist D. biologically
2. Are you sure that boys are more _______ than girls?
A. act B. active C. action D. activity
3. You are old enough to take _______ for what you have done.
A. responsible B. responsibility C. responsibly D. irresponsible
4. These quick and easy _______ can be effective in the short term, but they have a cost.
A. solve B. solvable C. solutions D. solvability
5. He was looking at his parents _______, waiting for recommendations.
A. obey B. obedience C. obedient D. obediently
6. The interviews with parents showed that the vast majority were _______ of teachers.
A. support B. supportive C. supporter D. supporting
7. London is home to people of many _______ cultures.
A. diverse B. diversity C. diversify D. diversification
8. John cannot make a ____ to get married to Mary or stay single until he can afford a
house and a car.
A. decide B. decision C decisive D. decisively
9. My mother used to be a woman of great _______, but now she gets old and looks pale.
A. beauty B. beautiful C. beautifully D. beautiful
10. Although they are twins, they have almost the same appearance but they are seldom
in _______.
A. agree B. agreeable C. agreement Dd. agreeably
11. The more _______ and positive you look, the better you will feel.
A. confide B. confident C. confidently D. confidence
12. My parents will have celebrated 30 years of _______ by next week.
A. marry B. married C. marriageable D. marriage
13. Many Vietnamese people ______ their lives for the revolutionary cause of the nation
A. sacrifice B. sacrificed C. sacrificial D. sacrificially
14. Most of us would maintain that physical ______ does not play a major part in how we
react to the people we meet.
A. attract B. attractive C. attractiveness D. attractively
15. They had a ______ candlelit dinner last night and she accepted his proposal of
marriage.
A. romance B. romantic C. romantically D. romanticize
16. They started, as ____ gatherings but they have become increasingly formalized in the
last few years.
A. informal B. informally C. informalize D. informality
17. Children who are isolated and lonely seem to have poor language and ________.
A. communicate B. communication C. communicative D. communicator
18. The lecturer explained the problem very clearly and is always _______ in response to
questions.
A. attention B. attentive C. attentively D. attentiveness
19. If a boss wants to have a well-qualified staff, he should have to pay his employees
_______.
A. appropriate B. appropriately C. appropriation D. appropriating
20. Mrs. Pike was so angry that she made a _______ gesture at the driver.
A. rude B. rudeness C. rudely D. Request

EXERCISE 2. Chose the best answer.
1. He is not really friendly and makes no attempt to be _______.
A. society B. social C. socialize D. sociable
2. She sent me a _______ letter thanking me for my invitation.
A. polite B. politely C. politeness D. impoliteness
3. Mr. Timpson's behavior and comments on occasions were inappropriate and fell
below the _______ standards.
A. accept B. acceptable C. acceptance D. accepting
4. As an _______, Mr. Pike is very worried about the increasing of juvenile delinquency.
A. educate B. education C. educator D. educative
5. In England, primary education is provided by state schools run by the government
and by _______ fee-paying schools.
A. independent B. independently C. depended D. independence
6. The United Nations Secretary-General has often spoken of the need for individual
_______ and human rights in his speeches.
A. free B. freedom C. freely D. freeing
 7. He did not do well at school and left with few _______ qualifications.
A. academic B. academy C. academician D. academically
8. The Minister of the Education and Training Department appeared on TV last night to
_______ his new policy.
A. public B. publicly C. publicize D. publicizing
9. He owed his success not to privilege but to self-education and a driving desire for
_______.
A. achieve B. achiever C. achievement D. achievable
10. To Vietnamese students, the _______ examination to university is very difficult.
A. require B. requirement C. requiring D. required
11. Despite many recent _______ advances, there are parts where schools are not
equipped with computers.
A. technology B. technological C. technologically D. technologist
12. There is a wide range of _______ in the education system of the USA.
A. select B. selective C. selected D. selection
13. He graduated with doctorates of ____ and surgery from Florence, gaining the highest
honors that year.
A. medicine B. medical C. medicate D. medication
14. The making of good habits _______ a determination to keep on training your child.
A. require B. requires C. requirement D. required
15. He was the only _______ that was offered the job.
A. apply B. application C. applicant D. applying
16. Parents can express a _______ for the school their child attends.
A. prefer B. preference C. preferential D. preferable
17. Many people have objected to the use of animals in _____ experiments.
A. science B. scientist C. scientific D. scientifically
18. I would like to invite you to participate in the ________ ceremony.
A. graduate B. graduated C. graduation D. graduating
19. Mr. Pike provided us with an _______ guide to the full-time and part-time programs
on offer to a range of candidates drawn from schools and colleges.
A. inform B. informative C. informed D. information
20. Not many places at the universities are left, so choice is on a severe _______.
A. limiting B. limitation C. delimitation D. United

EXERCISE 3. Chose the best answer.
1. Opera singer Maria Callas was known for her ________, powerful voice.
A. intensity B. intensify C. intense D. intensely
2. Many readers will disagree with the selection and the assessments as any guide will
invevitably be ______
A. subject B. subjected C. subjective D. Subjectivism
 3. Politicians___________blame the media if they don’t win the election. They’re so
predictable.
A variable B. variety C. various D. invariably
4. This is very _______! Can’t you practise your violin somewhere else?
A. convenient B. conveniently C. inconvenient D. convenience
5. I would like to show you my lastest ________, which I have called “Boasts on a Lake”
A. creativity B. creator C. create D. creation
6. During the festival _______ were hanging from every tree.
A. decorator B. decorations C. decorative D. decorativeness
7. He offered to give me a ________ of how the machine worked.
A. demonstrator B. demonstration C. demonstrate D. demonstrative
8. Those countries are_______ on other countries for most of their food.
A. dependent B. independence C. dependable D. dependability
9. He acted in an extremely ________ manner, which made him very unpopular
A. dictation B. dictatorial C. dictate D. dictatorship
10. He hoped the _______ agency would find him a job.
A. employee B. unemployed C. employer D. employment
11. A letter of _______ is sometimes really necessary for you in a job interview.
A. recommend B. recommended C. recommender D. recommendation
12. _______ is increasing, which results from economic crisis.
A. Employment B. Unemployment C. Employ D. Unemployed
13. He was offered the job thanks to his _______ performance during his job interview.
A. impress B. impression C. impressive D. impressively
14. There was no one _______.
A. I could ask for help B. when I could ask for help
C. I could ask whom for help D. for that I could ask for help
15. The interviewer gave his consent to John's _______ for work and promised to give
him a job.
A. keen B. keenly C. keener D. keenness
16. _______! I have heard of your success in the new project.
A. Congratulate B. Congratulating C. Congratulation D. Congratulations
17. It is _______ to fail a job interview, but try again.
A. disappoint B. disappointing C. disappointedly D. disappointment
18. The new policies include cutting _______ subsidies and trade barriers.
A. agriculture B. agricultural C. agriculturalist D. agriculturally
19. The control of _______ has been carried out through measures rooted in monetarism.
A. inflate B. inflationist C. inflation D. inflator
20. It is often a good idea to start with small, easily _______ goals.
A. achieve B. achievement C. achievable D. Unilever

 EXERCISE 4. Chose the best answer.
1. For more than ten years, we have seen the significant _______ in the economy of our
country.
A. develop B. developments C. developers D. developed
2. Henry was a studious student. He needed no _______ to work hard.
A. encourage B. encouraging C. encouragement D. encouraged
3. During the time of economic reforms, the economy has grown _____ with only a few
major setbacks.
A. constant B. constantly C. constants D. constancy
4. The ___challenge of economic, reform was to solve the problems of motivating
workers and farmers to produce a larger surplus.
A. initial B. initiate C. initiative D. initiation
5. Since 1990, India has had high growth rates, and has emerged as one of the wealthiest
_______ in the developing world.
A. economics B. economies C. economists D. economically
6. Those specialists are trying to find ways of making more _______ use of agricultural
land.
A. produce B. production C. productive D. productivity
7. Many teenagers show signs of anxiety and _______ when being asked about their
future.
A. depress B. depression C. depressing D. depressed
8. Constant _______ of attack makes everyday life dangerous here.
A. threat B. threaten C. threatening D. threateningly
9. No one can predict the future exactly. Things may happen _______.
A. expected B. unexpected C. expectedly D. unexpectedly
10. In the future, the number of tiny but ___computers you encounter every day will
number in the thousands, perhaps millions.
A. power B. powerful C. powerfully D. powered
11. Advances in computing ___, from processing speed to network capacity and the
internet, have revolutionized the way scientists work.
A. technology B. technological C. technologically D. technologist
12. What will the relationship between computing and _______ bring us over the next 15
years?
A. science B. scientific C. scientifically D. scientist
13. There is a wide _______ of computers in that shop for you to choose.
A. vary B. various C. variety D. variously
14. There are several places where residents face the threat of _______ every day.
A. terrorist B. terrorism C. terrorize D. terror
15. Many people think that in some more years we will see the complete _____ of
newspapers and magazines due to the Internet.
 A. disappear B. disappearance C. appear D. appearing
16. More and more ________ are very excited at discovering as many interesting things
in the deserts as possible.
A. explores B. explorations C. explorers D. exploratory
17. Can you make a ________ estimate of how much our expedition in the desert may be?
A. rough B. roughly C. roughing D. roughen
18. After Peter had returned from the Sahara desert, he was confined to bed by a ________
disease.
A. mystery B. mysterious C. mysteriously D. mysteriousness
19. ________ is the process by which a piece of land becomes dry, empty, and unsuitable
for growing trees or crops on.
A. desert B. deserted C. desertify D. desertification
20. Several ________ advanced countries have had plans to make desert more hospitable.
A. science B. scientific C. scientifically D. friendlist

EXERCISE 5. Chose the best answer.
1. The desert biome includes the hottest places in the world because it absorbs more ____
from the sun than land in humid climates do.
A. heat B. hot C. hotly D. heating
2. I wanted to go a more ________ route across Montana.
A. north B. northerly C. northerner D. northernmost
3. We often enjoy walking barefoot across the damp __ to the water's edge.
A. sand B. sanding C. sandy D. sandily
4. If the deserts are ________ managed, there may be troubles for scientific expeditions.
A. loose B. loosen C. loosening D. loosely
5. _______ is a branch of Natural Science, and is the study of living organisms and how
they interact with their environment.
A. Biology B. Biological C. Biologist D. Biologically
6. A / an _______ species is a population of an organism which is at risk of becoming
extinct.
A. dangerous B. endanger C. endangered D. endangerment
7. Only a few of the many species at risk of extinction actually make it to the lists and
obtain legal _____.
A. protect B. protection C. protective D. protector
8. Almost half of turtles and tortoises are known to be threatened with ____.
A. extinct B. extinction C. extinctive D. extinctly
9. Current extinction rates are at least 100 to 1,000 times higher than _______ rates found
in the fossil record.
A. nature B. natural C. naturally D. naturalness
 10. It is reported that humans are the main reason for most species' declines and habitat
____ and degradation are the leading threats.
A. destroy B. destructive C. destructor D. destruction
11. They eventually realize that reckless _______ of the earth's resources can lead only to
eventual global disaster.
A. exploit B. exploitable C. exploitation D. exploitative
12. Farmers make their soil more productive by distributing _______.
A. fertile B. fertility C. fertilizers D. fertilizable
13. Chemical wastes from factories are _______ that cause serious damage to species
habitats.
A. pollutes B. pollutants C. pollutions D. polluters
14. This book is not really ________. It is a waste of money buying it.
A. inform B. information C. informative D. informatively
15. Sometimes it is ________ to find suitable books for our children.
A. difficult B. difficulty C. difficultly D. difficulties
16. A book may be evaluated by a reader or professional writer to create a book ________.
A. review B. reviewing C. reviewer D. reviewed
17. Read the book ________ and you can find the information you need.
A. care B. careful C. carefulness D. carefully
18. Not many people find reading more ________ than watching TV.
A. interest B. interested C. interesting D. interestingly
19. To become a novelist, you need to be ________.
A. imagine B. imagination C. imaginative D. imaginarily
20. After leaving school, many of us only read for ________.
A. please B. pleasant C. pleasure D. Planning

EXERCISE 6. Chose the best answer.
1. Mary enjoys reading ________, adventure, and whatever else she can either buy or
borrow.
A. romance B. romantic C. romanticize D. romanticism
2. The novel has had a tremendous impact on ________ and publishing markets.
A. entertain B. entertainer C. entertainment D. entertainingly
3. They are going to _______ the pool to 1.8 meter.
A. deep B. depth C. deepen D. deeply
4. The referee had no hesitation in awarding the visiting team a _______.
A. penalty B. penalize C. penal D. penalization
5. The crowd cheered as the goalkeeper deflected the _______.
A. shoot B. shooting C. shooter D. shot
6. The referee's _______ is the most important in any sport competition.
A. decide B. decisive C. decision D. decider
 7. _______ players are not allowed to interfere with the opponent's movements unless
the player is holding the ball.
A. Defense B. Defensive C. Defender D. Defensively
8. The main task of a defender in a sport game is to _______ the opponents from scoring.
A. prevent B. preventing C. prevention D. preventable
9. Many young men prefer scuba-diving because it is _______.
A. adventure B. adventurous C. adventurously D. adventurist
10. I _______ think that scuba diving is more of danger than adventure.
A. person B. personal C. personally D. personalize
11. Johnny used to be one of the most _______ athletes in my country.
A. succeed B. success C. successful D. successfully
12. The 22nd SEA Games consisted of athletes from eleven _____ countries.
A. participate B. participant C. participation D. participating
13. _______, the athlete broke the world's record with two attempts.
A. Surprise B. Surprised C. Surprising D. Surprisingly
14. How many _______ took part in the 22nd SEA Games?
A. compete B. competitors C. competition D. competitor
15. The second part of the program in the 22nd SEA Games opening ceremony was named
"_______ for Peace".
A. Cooperate B. Cooperation C. Cooperative D. Cooperatively
16. The _______ wanted to reduce the breadth of the games, with many events currently
having small fields and weak competition.
A. organize B. organization C. cognizable D. organizers
17. Before the 22nd SEA Games, Vietnam had made a good _______ in every aspect.
A. prepare B. preparation C. preparative D. preparer
18. ASEAN press praised the great _______ of Vietnamese athletes at the 22nd SEA
Games.
A. sports B. sportsman C. sporting D. sportsmanship
19. The success of the 22nd SEA Games had a great contribution of many _______
volunteers.
A. support B. supporter C. supportive D. supportively
20. The International Red Cross helps people in need without any discrimination based
on ____, race, religion, class or political opinions.
A. national B. nationally C. nationality D. Creative

EXERCISE 7. Chose the best answer.
1. The International Committee of the Red Cross is a private _______ institution founded
in 1863 in Geneva, Switzerland.
A. human B. humanity C. humanization D. humanitarian
 2. In former days, after the battles soldiers on both sides died or were left wounded on
the field without any _______ attendance and basic care.
A. medicine B. medical C. medication D. medically
3. She sustained severe head _______ after being thrown from her horse.
A. injure B. injured C. injuries D. injurious
4. According to World Bank figures, 41 per cent of Brazilians live in absolute _______.
A. poor B. poorer C. poorly D. poverty
5. Up until the middle of the 19th century, there were no _______ and well established
army nursing systems for casualties.
A. organize B. organized C. organizational D. organizers
6. All payments to the ICRC are _______ and are received as donations.
A. volunteer B. voluntary C. voluntarily D. voluntariness
7. The Red Cross organizes and leads relief assistance missions after _______, such as
natural disasters, man-made disasters, and epidemics.
A. emergent B. emergencies C. emergently D. emergence
8. One of the tasks of the Red Cross is also to support local ________ care projects.
A. health B. healthy C. healthful D. healthily
9. A child receives his early ________ from their parents.
A. educate B. education C. educator D. educative
10. Birth control methods have ________ women from the endless cycle of childbearing
and rearing.
A. free B. freely C. freedom D. freed
11. Thanks to the women's liberation women can take part in ________ activities.
A. social B. society C. socially D. socialize
12. To preserve that ________, it was necessary to preserve the people that had created it.
A. civil B. civilize C. civility D. civilization
13. The Prime Minister is to consider changes to sexually _______ laws to enforce equal
opportunities.
A. discriminate B. discrimination C. discriminatory D. discriminated
14. In former days, women were considered not to be suitable for becoming a ________.
A. politics B. political C. politically D. politician
15. Western women are more ________ than Asian women.
A. depend B. dependent C. independent D. independently
16. In some communities a husband's ________ over his wife is absolute.
A. power B. powerful C. powerfully D. powered
17. I think that up to now there has not been a real ________ between men and women.
A. equal B. equally C. equality D. equalize
18. ASEAN also works for the _______ of peace and stability in the region.
A. promote B. promotion C. promotional D. promoter
 19. The Association of Southeast Asian Nations, commonly referred to as ASEAN, is a
geo-political and _______ organization.
A. economy B. economic C. economics D. economical
20. The motivations for the birth of ASEAN were the desire for a _______ environment.
A. stable B. stability C. stably D. stabilize

EXERCISE 8. Chose the best answer.
1. The___ of carbon dioxide into the atmosphere is responsible for environmental pollution in
this area.
A. emission B. emitted C. emissaries D. emit
2. Life here is very _____.
A. peacefully B. peaceful C. peace D. peacefulness
3. Women usually don’t shake hands when being _____.
A. introducing B. introduction C. introduced D. introducer
4. These men _____ survived the crash.
A. miraculous B. miracle C. miraculously D. miracles
5. The doctor____ him that there was nothing seriously wrong with his health.
A. reassurance B. reassured C. reassuring D. reassuringly
6. The ______ of waste paper can save a great amount of wood pulp.
A. recycled B. recycling C. recyclable D. recycle
7. He was so _____ that he had an accident.
A. caring B. careless C. careful D. carefully
8. The dog made no effort to communicate its _______to the man.
A. apprehensive B. apprehended C. apprehend D. apprehension
9. Farmers can enrich the soil by using ______.
A. fertile B. fertility C. fertilize D. fertilizers
10. Nowadays, chemicals are ______ into some fruits to reduce decay.
A. injection B. injecting C. inject D. injected
11. What’s your _______? – I’m Vietnamese.
A. nation B. national C. nationality D. international
12. In this course, students receive _______ in the basic English grammar.
A. instruct B. instructional C. instruction D. instructive
13. After her father’s death, she came into________ of a great fortune.
A. possess B. possession C. possessive D. possessively
14. I _____ him for his honesty.
A. respective B. respectful C. respectable D. respect
15. All of the students appreciate the ______ of English learning.
A. import B. important C. importantly D. importance
16. She is ______ in asking for bigger salary. She has worked hard.
 A. reason B. unreasonable C. reasonable D. unreasonably
17. We can enjoy live programmes through _______ satellites.
A. communicate B. communication C. communicative D. communicable
18. Learning English has become a ______ in our country.
A. necessitate B. necessary C. necessity D. necessarily
19. Computers are ______ used in schools and universities.
A. widely B. wide C. width D. widen
20. He retired at the ______ of 60.
A. age B. old C. older D. folder

EXERCISE 9. Chose the best answer.
1. My teacher always give us a clear ______.
A. explain B. explained C. explanatory D. explanation
2. The _____ of the moon for the earth causes the tides.
A. attract B. attracted C. attractive D. attraction
3. Your bad result made me ______.
A. disappoint B. disappointment C. disappointed D. disappointing
4. Getting such a well-paid job is very beyond my ______.
A. expect B. expected C. expecting D. expectation
5. Hai has sometimes been unsuccessful just because he is not _____ of other people’s
opinions.
A. tolerate B. tolerable C. tolerant D. tolerated
6. It has been proved ______ that the unemployment rates are increasing.
A. statistic B. statistics C. statistical D. statistically
7. She has made an _______ for the job as a nursery teacher because she like children.
A. apply B. applicant C. application D. applicator
8. Daisy has been out of work for 3 months. She stay at home and does the
housework_______.
A. disappoint B. disappointed C. disappointedly D. disappointing
9. She is a biologist. She is interested in _______.
A. conserves B. conservancy C. conservation D. conservative
10. More and more people die of food ______ nowadays.
A. poison B. poisonous C. poisonment D. poisoning
11. There is no ______ for them to do that.
A. need B. needs C. needless D. needing
12. The _____ development leads to our country’s prosperity.
A. industry B. industries C. industrial D. industrialize
13. Farmers ______ their land to make it _______.
A. fertilize/product B. fertilizer/productive
C. fertilize/production D. fertilize/productive
 14. Many communities are burning garbage and other biological waste products to
produce ______.
A. electric B. electricity C. electrician D. electrify
15. _______wildlife needs the cooperation of the public.
A. safe B. safety C. safeguard D. safeguarding
16. Stress and tiredness often lead to lack of _______.
A. concentrate B. concentration C. concentrated D. concentrator
17. Human being are the worst _______ on the earth.
A. pollutes B. polluters C. pollutants D. pollutions
18. A combine harvest is very ______, it can cut and thresh rice at the same time.
A. use B. useless C. useful D. usefulness
19. Mrs. Christine has been told by her doctor that she is ______, she cannot have a child
of her own.
A. childless B. childhood C. childish D. child
20. Are you _____ of the danger that you are facing?
A. sense B. sensible C. senseless D. presentation

EXERCISE 10. Chose the best answer.
1. Thanks to my friends’ ________ remarks, my essay have been improved.
A. construct B. construction C. constructive D. constructor
2. What is your _____ in fife?
A. aim B. aimless C. aimlessly D. aimlessness
3. The matter is under ______.
A. investigate B. investigation C. investigatory D. investigative
4. The president traveled under the ______ of many soldiers.
A. protect B. protective C. protection D. protector
5. The US made a _____ declaration of war to Iraq.
A. formal B. formality C. formalize D. formalism
6. I sometimes do not feel ______ when I’m at a party.
A. comfort B. comforter C. comfortable D. comfortably
7. Women show a _______ to live longer than men.
A. tend B. tendentious C. tendency D. tendentiously
8. It is necessary for the host to make his guest feel comfortable and _____
A. relax B. relaxation C. relaxing D. relaxed
9. Their _____ has last for more than 20 years.
A. friends B. friendly C. friendship D. friendness
10. They have no ______ of the help.
A. expect B. expectation C. expectancy D. expectorate
11. Do you feel _____ when taking a test?
A. nervous B. nerve C. nerveless D. nervy
 12. Paper that _____ ink is called blotting paper.
A. absorb B. absorbs C. absorbed D. absorbent
13. The scientists have invented a special chemical that attaches itself ______ to cancer
cells.
A. prefer B. preference C. preferential D. preferentially
14. _______ is very important in doing mathematical exercises.
A. Precise B. Precisely C. Precising D. Precision
15. The workers chose Mr. Pike their _______.
A. represent B. representative C. represents D. representation
16. Jack London wrote several ______ novels on adventure.
A. interesting B. interested C. interest D. interestingly
17. She is _____ with her present job.
A. satisfy B. satisfied C. satisfaction D. satisfactory
18. They are my _____ friends.
A. intimate B. intimacy C. intimates D. intimation
19. It takes one a long time to become an ______ pianist.
A. accomplish B. accomplished C. accomplishment D. accomplishing
20. The young usually do things _______.
A. enthusiasm B. enthusiast C. enthusiastic D. enthusiatically

EXERCISE 11. Chose the best answer.
1. The industrial ______ has made many changes in our country.
A. develop B. developing C. developer D. development
2. The scenery was beautiful beyond _____.
A. describe B. description C. descriptive D. descriptively
3. Which _______ distinguishes American English and British English.
A. character B. characterize C. characterless D. characteristic
4. New films always get public ______ seriously.
A. reach B. reaction C. reactor D. reactivate
5. This sort of behavior will not be _______.
A. tolerate B. tolerated C. tolerance D. tolerant
6. The hotel is famous for its _______ arranged rooms.
A. attractive B. attracted C. attractively D. attraction
7. I wasn’t _____ on going to the party last night.
A. keenness B. keenly C. keen D. keenest
8. You can _____ knowledge by reading newspapers.
A. richly B. enrichment C. rich D. enrich
9. My son has given a great deal of _____ to his future job.
A. thoughtless B. thoughtful C. thought D. think
10. The most important thing is to keep yourself ______.
 A. occupation B. occupied C. occupant D. occupational
11. Hundreds of ______ have been involved in the research.
A. scientists B. science C. scientific D. scientifically
12. The animal hurdled together for _____.
A. warmth B. warmly C. warmed D. warm
13. The more ______ an event is, the better it will be remembered.
A. signify B. significance C. significantly D. significant
14. The authorities are discussing the worrying ______ issues in the area.
A. environmentalists B. environmental
C. environment D. environmentally
15. The custom was said to be a matter of _______.
A. convenient B. convenience C. conveniently D. convene
16. Cheer up! You look ______!
A. disappointed B. disappointing C. disappointment D. disappointed
17. Carbon dioxide occurs in the air in _____ form.
A. nature B. naturally C. natural D. naturalness
18. Most major cities are large ________ of industry and automobiles.
A. concentration B. concentrated C. concentrations D. concentrating
19. Many students in my class expressed a strong _______ for the school’s original project.
A. preferring B. preference C. preferable D. preferential
20. I have ______ touch with my father for a long time.
A. loss B. lost C. loose D. loen

EXERCISE 12. Chose the best answer.
1. Don’t believe him. He is always ______ friendly.
A. superficiality B. superficial C. superficially D. facial
2. I don’t know what I am going to do after leaving school. I am ______ about my decision.
A. uncertain B. certainty C. certain D. certainly
3. They have been working very hard in _____ for the upcoming exams.
A. prepared B. preparation C. preparatory D. prepares
4. I think their injuries need medical ______.
A. treatment B. treated C. treatable D. untreated
5. This isolated area is ______ only by the helicopter.
A. inaccessible B. access C. accessing D. accessible
6. The children should be _____ to realize their full potential.
A. discouraged B. encourage C. couraged D. courage
7. I don’t think I am ______ of doing it.
A. capability B. capable C. capabilities D. capacity
8. The film gives us ______ insight into life in Brazil. It’s worth seeing!
A. valuable B. unvaluable C. value D. evaluate
 9. We were amazed at the _______ of the Great Barrier Reef.
A. beautiful B. beautifully C. beautify D. beauty
10. The child was ill due to vitamin ______.
A. deficient B. deficiency C. deficiently D. deficit
11. The ASEAN Security Community (ASC)aims to ensure that countries in the region live
at _______ with one another and in a democratic and harmonious environment.
A. peace B. peaceful C. peacefully D. peaceable
12. ASEAN's aims include the acceleration of economic growth, _______ progress,
cultural, development among its members, and the promotion of regional peace.
A. society B. social C. socially D. socialize
13. A combined gross domestic _______ of the member countries of ASEAN has grown
at an average rate of around 6% per year.
A. produce B. productivity C. production D. product
14. Throughout the 1970s, ASEAN embarked on a program of economic _______.
A. cooperate B. cooperation C. cooperative D. cooperatively
15. 2007 was the 40th anniversary of the _______ of ASEAN.
A. found B. founder C. foundation D. founding