If we ______some measures, we might have prevented the environmental pollution.

试卷相关题目

• 1We first met on a train in 2000．We both felt immediately that we _____ each other for years.

  A.knew

  B.have known

  C.had known

  D.know

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• 2The manager had fallen asleep where he ______, without undressing．

  A.was laying

  B.was lying

  C.had laid

  D.had lied

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• 3When he looked up, he suddenly found himself ______ by a group of teenagers, ______ looked at him anxiously.

  A.to be surrounded; which

  B.surrounded; who

  C.be surrounded; who

  D.having been surrounded; which

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• 4--- Thank goodness, you are here ! What ____ you ? ---- Traffic jam．

  A.keeps

  B.is keeping

  C.had kept

  D.kept

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• 5When the fans hurried to the airport, they found that the famous singer _____.

  A.had left

  B.has left

  C.left

  D.will leave

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• 6The room is very large and only little room_______ by the new piano.

  A.are taken up

  B.takes up

  C.is taken up

  D.is taking up

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• 7—How long has Mary ______ Johnson? —I don't know. I even don't know that they had ______.

  A.been married with; married

  B.married with; married

  C.married to; married

  D.been married to; got married

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• 8The violin will have to be tuned before it _____.

  A.plays

  B.should play

  C.is played

  D.is being played

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• 9The emergency required that all the tasks _____ at least two days ahead of time．

  A.to complete

  B.should complete

  C.be completed

  D.should have been completed

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• 10—We'll go camping tomorrow morning, I promise. —Maybe by then you_____ your mind.

  A.changed

  B.are changing

  C.will have changed

  D.have changed

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