Scientists first ________ the idea of the atom bomb in the 1930s.

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• 1I tried to relax because I knew I would use up my oxygen sooner ________.

  A.the more excited I got

  B.I got excited more

  C.and more I got excited

  D.and I got more excited

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• 2Another big issue ________ the new republic is the problem of the education of its citizens.

  A.confining

  B.confirming

  C.conforming

  D.confronting

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• 3Your excuse that an elephant fell on you and made you late is just ________.

  A.inevitable

  B.indispensable

  C.incredible

  D.incurable

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• 4The fact that they reacted so differently was a reflection of their different ________.

  A.performances

  B.personalities

  C.qualities

  D.appearances

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• 5________ I admit that there are problems, I don’t think that they cannot be solved.

  A.Unless

  B.Until

  C.As

  D.While

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• 6Cotton production has been ________ the decline these years.

  A.down

  B.on

  C.at

  D.under

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• 7The day before my history exam, I still hadn’t ________ reading the first book on the list.

  A.as about

  B.caught up with

  C.got round to

  D.sat for

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• 8He has pointed our the dangers ________ in this of nuclear power station.

  A.interior

  B.inherent

  C.insists

  D.inner

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• 9Wherever I have an appointment, I like to arrive ________.

  A.ahead of time a little

  B.a little time

  C.a little ahead of time

  D.ahead of a little time

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• 10Radar is used to extend the ________ of man’s sense of observing his environment, especially the sense of vision.

  A.validity

  B.liability

  C.capability

  D.intensity

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