It was quite a serious mistake, ______ caused by carelessness.

试卷相关题目

• 1— ____ in this street?   — I think Mr. Black is the richest man.

  A.Whom do you think is the richest man

  B.Who do you think is the richest man

  C.Do you think who is the richest man

  D.Do you think whom is the richest man

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• 2I don't believe the reason ____ he has given for not coming to the lecture.

  A.why

  B.that

  C.how

  D.what

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• 3You are saying that everyone should be equal, and this is ________ I disagree.

  A.why

  B.where

  C.what

  D.How

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• 4The Science Museum, ____________ we visited during a recent trip to Britain, is one of London's tourist attractions.

  A.which

  B.what

  C.that

  D.where

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• 5Can you think of some cases______drivers obviously knew the traffic rules but didn't obey them?

  A.why

  B.where

  C.as

  D.which

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• 6The man who was being followed stopped from time to time ______ he wanted to tie his shoelaces.

  A.as if

  B.like

  C.what

  D.as

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• 7In the forest we observed some trees ______ the leaves were black with disease.

  A.where

  B.of which

  C.in which

  D.whose

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• 8______ environmental damage is done, it takes many years for the ecosystem to recover.

  A.Even if

  B.If only

  C.While

  D.Once

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• 9The owner of the cinema needed to make a lot of improvements and employ more people to keep it running, ______ meant spending tens of thousands of pounds.

  A.who

  B.that

  C.as

  D.which

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• 10Children's brains can't develop properly_______ they lack protein(蛋白质).

  A.when

  B.since

  C.because

  D.unless

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