By the time he realizes the mistake he ________，it will be too late for him to do anything about it.

试卷相关题目

• 1She is a diligent student, and all her spare time she has ______ staying in the library．

  A.is spent

  B.spent

  C.to spend

  D.to be spent

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• 2I wasn't aware of this before, but recent research _____ that eating too much fat can contribute to heart disease.

  A.has shown　

  B.will show

  C.was showing

  D.showed

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• 3The project _______ a success as the income of the company increases every year. 

  A.is proved

  B.had proved

  C.has proved

  D.has been proved

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• 4Since then the number of people taking driving lessons ________ 20％.

  A.has increased to

  B.increases by

  C.has increased by

  D.have increased by

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• 5I've tried my best and done quite well, but he ______ faults with me.

  A.always finds

  B.has always found

  C.always found

  D.is always finding

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• 6– Why isn't the recorder ready yet? --- I'm sorry, sir. It ______ in the factory.

  A.is being repaired

  B.is repaired

  C.has been repaired

  D.hasn't repaired

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• 7--- What on earth is that noise? --- Oh, the next flat ________．

  A.was decorated

  B.was decorating

  C.is being decorated

  D.is to be decorated

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• 8—Have you seen Jack recently? —No. He ______  for another company now.

  A.is working

  B.had worked

  C.worked

  D.was working

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• 9The film you'd like to ________ quickly won't be ready until tomorrow.

  A.have develop

  B.have developed

  C.have to develop

  D.have to be developed

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• 10The taxi was so slow that we might as well _________ on the bus.

  A.go

  B.have gone

  C.to go

  D.having gone

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