There is no doubt _________ the world climate has been changing in recent years.

试卷相关题目

• 1__________ printed, this science fiction will be popular among the students.

  A.Before

  B.Unless

  C.Although

  D.Once

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• 2You must observe and gather information like Nicolaus Copernicus ________ you want more career advancement opportunities.

  A.or

  B.because

  C.unless

  D.if

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• 3The reason _________ he is late is _______ there was a breakdown on the railway．

  A.why; that

  B.because; that

  C.that; because

  D.why; why

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• 4His promise _________ he would marry her when he came back turned out to be a lie, _________ left the girl heart-broken．

  A.which; what

  B.that; which

  C.what; which

  D.which ; that

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• 5He has made some spelling mistakes in the paper; ______, they are not serious.

  A.but

  B.therefore

  C.even if

  D.however

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• 6As the visiting prime minister puts, China's influence in the world will continue to strengthen ______ its economy grows.   

  A.although

  B.until

  C.as

  D.before

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• 7_______ you keep on practicing English, I'm sure you will be able to speak it fluently.

  A.As soon as

  B.As long as

  C.Even if

  D.As if

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• 8Mary must keep her mind on her medical studies now, so it would be years ______ she could think about marriage.

  A.before

  B.when

  C.since

  D.until

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• 9We have decided to fulfill the task in time, _________ difficulties we may meet with.

  A.no matter how

  B.however

  C.whatever

  D.whichever

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• 10The school _______ I visited the other day was not the one _______ I once studied.

  A.that; which

  B.which; where

  C.where; which

  D.where; where

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