They are putting too much carbon dioxide into the atmosphere, ______ prevents heat from escaping from the earth into space.               

试卷相关题目

• 1－Are you sure you have to? It's been so late. Make it another time? －I don't know ________ I can do it if not now.

  A.how

  B.what

  C.when

  D.that

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• 2—You see，I'm poor in maths，you are not good at English，and... —That's________we should help each other.

  A.when

  B.where

  C.how

  D.what

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• 3We will be for ______ promises to volunteer to help us solve the puzzling problem.

  A.whoever

  B.any one of them

  C.those who

  D.anyone

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• 4John thinks it won't be long _______ he is ready for his new job.        

  A.when

  B.after

  C.before

  D.since

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• 5Nobody can achieve anything of real significance _____ he works very hard.

  A.if

  B.unless

  C.meanwhile

  D.as

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• 6Brave New World describes a terrifying future _________ there is no war or violence and all the people can live happily.

  A.where

  B.which

  C.that

  D.whom

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• 7It is an interesting story and one can't put it down _____ one has finished reading it.

  A.after

  B.when

  C.since

  D.until

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• 8I was close to being killed the other day. A car passed me at______ I thought was a dangerous speed.

  A.as

  B.which

  C.what

  D.That

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• 9When a disaster occurs, all people, ________ they are old or young, rich or poor, try their best to help those in need.

  A.no matter

  B.whether

  C.however

  D.even though

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• 10That is the best way you thought of _______ into trouble.

  A.stopping some young people to get

  B.to prevent some young people getting

  C.keeping some young people getting

  D.preventing some young people getting

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