It is difficult for you to ______ what will happen in space without gravity.

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• 1——Who telephoned just now? ——Sorry. I couldn't ______ the voice.

  A.recognize

  B.realize

  C.know

  D.understand

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• 2This is not what I _____ him to say.

  A.hoped

  B.expected

  C.has hoped

  D.thought

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• 3__ your courage, ___ you will not fail.

  A.Keep to…then

  B.Keep up…and

  C.Keep up with…and

  D.Keep on…so

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• 4The old worker _______ a very practical plan at the meeting yesterday, but it was turned down by the manager.

  A.put off

  B.put on

  C.put up

  D.put forward

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• 5He is really a friend of mine. He would _______his last penny with me.

  A.cost

  B.lend

  C.gave

  D.share

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• 630. Look! What a mess the room is! In my opinion, it needs ______.

  A.cleaning up

  B.being cleaned up

  C.to clean up

  D.clean up

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• 7I don't care whatever difficulty I will have _________ this survey.

  A.conduct

  B.to conduct

  C.conducted

  D.conducting

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• 8The police saw the woman _______ a bus and _______ a taxi.

  A.get off …get on

  B.get on … get off

  C.get off …get into

  D.get on … get into

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• 9The angry boss ________ from the chair and went directly to him.

  A.lifted

  B.raised

  C.rose

  D.carried

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• 10---Must I take this medicine, Mom? It ________ so terrible. ---Yes, you must take it for another three days.

  A.is tasting

  B.is tasted

  C.tastes

  D.has tasted

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