1.  I ______ with thanks the help of my colleagues in the preparation of this new column.

• A.express
• B.confess
• C.verify
• D.acknowledge

2.  The tenant must be prepared to decorate the house ______ the terms of the contract.

• A.in the vicinity of
• B.in quest of
• C.in accordance with
• D.in collaboration with

3.  To survive in the intense trade competition between countries, we must ______ the qualities and varieties of products we make to the world market demand.

• A.improve
• B.enhance
• C.guarantee
• D.gear

4.  The glaciers that reached the Pacific Coast were valley glaciers, and between those tongues of ice ______ that allowed the original forests to survive.

• A.that many sanctuaries were
• B.were many sanctuaries
• C.were there many sanctuaries
• D.there the many sanctuaries

5.  When he realized the police had spotted him, the man ______ the exit as quickly as possible.

• A.made off
• B.made for
• C.made out
• D.made up

6.  Dozens of scientific groups all over the world have been ______ the goal of a practical and economic way to use sunlight to split water molecules.

• A.pursuing
• B.chasing
• C.reaching
• D.winning

7.  A window in the kitchen was ______; there was rubbish everywhere, and the curtains and carpets had been stolen.

• A.scattered
• B.scraped
• C.scratched
• D.smashed

8.  ______ was the first fully successful transatlantic cable finally laid.

• A.Not until 1866
• B.Until 1866, just
• C.Until 1866
• D.In 1866, not until

9.  ______ from the top of the tower, the south foot of the mountain is a sea of trees.

• A.Seen
• B.Seeing
• C.Having seen
• D.To see

10.  If the United States had built more homes for the poor in 1955, the current housing problem in some parts of the country ______ so serious.

• A.is not
• B.would not be
• C.will not have been
• D.would not have been

11.  Mr. Wang made up his mind to devote all he could ______ his oral English before going abroad.

• A.improve
• B.to improve
• C.improving
• D.to improving

12.  You should have been more patient ______ that customer.

• A.of
• B.with
• C.for
• D.at

13.  On this happy occasion, I'd like to say that we are ______ much obliged to you for your kind cooperation.

• A.even so
• B.ever so
• C.as yet
• D.so far

14.  You should ______ to one or more weekly magazines such as Time, or Newsweek.

• A.ascribe
• B.order
• C.reclaim
• D.subscribe

15.  She says the firm placed her under guard in a shipping container and she was released only after her father asked the US embassy to ______.

• A.interfere
• B.intervene
• C.interrupt
• D.disturb

16.  I have a lot of readings ______ before the end of this term.

• A.completing
• B.to complete
• C.completed
• D.being completed

17.  In Scotland, as in the rest of the United Kingdom, ______ schooling begins at age 5 and ends at age 16.

• A.compelling
• B.forced
• C.obliged
• D.compulsory

18.  Our company's product line ______ 2,500 different items.

• A.comprise
• B.compose
• C.consist
• D.constitute

19.  He looked at me, with an expression ______ that he felt even more puzzled.

• A.indicate
• B.indicates
• C.indicating
• D.indicated

20.  When he finally emerged from the cave after thirty days, John was ______ pale.

• A.enormously
• B.startlingly
• C.uniquely
• D.dramatically

21.  Competition, they believe, ______ the national character rather than corrupt it.

• A.reinforces
• B.aggravates
• C.increases
• D.strengthens

22.  If anything, there will actually be an embarrassing margin ______ the opposition in the runoff.

• A.in relation to
• B.in excess of
• C.in contrast to
• D.in favor of

23.  Some studies confirmed that this kind of eye disease was ______ in tropical countries.

• A.perpetual
• B.prospective
• C.prevalent
• D.provocative

24.  He is a very honest official and never ______ any gifts from the people who sought his help.

• A.accepted
• B.received
• C.took up
• D.excepted

25.  Henry's news report covering the conference was so ______ that nothing had been omitted.

• A.understanding
• B.comprehensible
• C.comprehensive
• D.understandable

26.  The tourists ______ through the fog, trying to read what was engraved on the gravestone Shakespeare had chosen for himself.

• A.glanced
• B.glimpsed
• C.peered
• D.peeped

27.  He wanted very much to run for a second term, but owing to poor health, he was ______ to give it up.

• A.driven
• B.permitted
• C.rebuked
• D.compelled

28.  ______ your opinions are worth considering, the committee finds it unwise to place too much importance on them.

• A.As
• B.Since
• C.Provided
• D.While

29.  If you want to know the train schedule, please ______ at the booking office.

• A.acquire
• B.inquire
• C.request
• D.require

30.  There are not many teachers who are strong ______ of traditional methods in English teaching,

• A.sponsors
• B.contributors
• C.advocates
• D.performers

31.  A large part of human activity, particularly in relation to the environment, is ______ conditions or events.

• A.in response to
• B.in favor of
• C.in contrast to
• D.in excess of

32.  The majority of the nurses are women, but in the higher ranks of the medical profession, woman are in a ______.

• A.minority
• B.scarcity
• C.rarity
• D.minimum

33.  The foreign student advisor recommended that she ______ more English before enrolling at the university.

• A.studied
• B.study
• C.would study
• D.was studying

34.  All individuals are required to ______ to the laws made by their governments.

• A.obey
• B.conform
• C.concede
• D.observe

35.  Because of the complexity of the modern machine, most offices require secretaries ______.

• A.to have specified training
• B.specified in training
• C.to train specifically
• D.training specified

36.  Louis Brailele designed a form of communication enabling people to ______ and preserve their thoughts by incorporating a series of dots which were read by the finger tips.

• A.retain
• B.visualize
• C.convey
• D.transfer

37.  Human beings have ______ themselves to very diverse environments with the help of fire, agriculture and machines.

• A.adapted
• B.addicted
• C.adopted
• D.adhered

38.  Rather like a spoilt child, he can force you into feeling that his survival depends on your ______ presence and care.

• A.considerate
• B.constant
• C.conscientious
• D.consistent

39.  Though steam engines have now passed the ______ of their usefulness, their heritage remains.

• A.prime
• B.era
• C.epoch
• D.date

40.  James regretted his decision to come to ______ appeared to him to be a backward, run-down, poverty-stricken island.

• A.where
• B.as
• C.what
• D.which

41.  Cohesion has been found to ______ positively with group productivity and member satisfaction.

• A.concur
• B.co-occur
• C.co-exist
• D.correlate

42.  When he tried to make a ______, he found that the hotel was completely filled because of a convention.

• A.reservation
• B.claim
• C.mess
• D.revision

43.  Great as Russell was, many of his ideas ______ today and are being modified by the work of philosophers of our time.

• A.are to challenge
• B.may be challenged
• C.have been challenged
• D.are challenging

44.  When traveling, it is possible that you may be advised to take the travelers' checks, which provide a secure ______ to carrying your money in cash.

• A.selection
• B.preference
• C.alternative
• D.substitute

45.  Climate change was probably important in both ______ and evolution of dolphins.

• A.execution
• B.extinction
• C.exclusion
• D.excavation

46.  The energy gained from the sun can then be used during the night to enable the necessary chemical reactions to ______ in his body.

• A.conduct
• B.proceed
• C.progress
• D.practice

47.  Humidity is so intense in some parts of the tropics that Europeans find they are unable to ______ it.

• A.maintain
• B.persist
• C.endure
• D.sustain

48.  The National Geographic Society headquarters, ______ in Washington D.G., is well-known for its magazine.

• A.situated
• B.placed
• C.stood
• D.positioned

49.  From the moment of his birth the ______ into which he is born shape his experience and behavior.

• A.habits
• B.practices
• C.customs
• D.conventions

50.  Mary wants to study medicine but she is not very clever. I don't think she is ______ it.

• A.up to
• B.for
• C.within
• D.towards