In the Olympic Games, only athletes who have reached the agreed standard for their event will be ______ as competitors．

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• 1They're arguing on who, on earth, is known for the great discovery ______ penicillin, an effective bacteria killer.

  A.making up

  B.making into

  C.made of

  D.made from

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• 2We must do what we can to ______the river ______.

  A.protect; against polluting

  B.stop; polluting

  C.keep; being polluted

  D.prevent; from being polluted

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• 3I'd like to ______ myself with a cup of tea before going to work

  A.recover

  B.rebuild

  C.replace

  D.refresh

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• 4Last Sunday a few of us arranged to meet in town, but Jenny didn't  ______.

  A.turn up

  B.give up

  C.make up

  D.take up

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• 5William found it increasingly difficult to read，for his eyesight was beginning to ______．

  A.disappear

  B.fall

  C.fail

  D.damage

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• 6Dark glasses can _____ your eyes ______ the sunlight.

  A.prevent; from

  B.save; from

  C.stop; from

  D.protect; from

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• 7It was a long time before the police________what he was really doing.

  A.caught hold of

  B.caught up

  C.caught on to

  D.caught at

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