Scientists have to work hard to keep _____ with modern discoveries and developments.

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• 1The boy slipped out of the room and headed for the swimming pool without his parents' _____.

  A.command

  B.conviction

  C.consent

  D.compromise

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• 2If you ever have the _____ to go abroad to work, you should take it.

  A.possibility

  B.offer

  C.luck

  D.chance

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• 3The two men are______.

  A.of the same age

  B.same age

  C.an age

  D.of same age

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• 4Working hard is not only a_____ of a great success, but is among the essential requirement.

  A.sign

  B.signal

  C.guarantee

  D.marks

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• 5Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____  without scientific basis.

  A.process

  B.practice

  C.procedure

  D.program

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• 6—She got her first science fiction published．It turned out to be _________. —when was that? —It Was in 2008__________ she was still in college．

  A.success; that

  B.a success；when

  C.success; when

  D.a success; that

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• 7Would you take my old TV in _______ for this camera?

  A.place

  B.return

  C.exchange

  D.business

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• 8I shouldn't have accepted the man's present, but I found it difficult to turn down his ______.

  A.offer

  B.request

  C.suggestion

  D.plan

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• 9Put the ______ of your tongue against your upper teeth when you produce the sound.

  A.tip

  B.top

  C.peak

  D.pole

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• 10School children must be taught how to deal with dangerous  ______ .

  A.states

  B.conditions

  C.situations

  D.positions

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