高考英语连词练习30

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• 41Although he knew little about the large amount of work done in the field , he succeeded _____ other more well-informed experimenters failed.

  A.as

  B.unless

  C.what

  D.where

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• 42China isn't the country _________ she used to be 50 years ago.

  A.that

  B.which

  C.what

  D.since

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• 43—So you know Della? —Yes, it was last week__________I surfed the Internet.

  A.that

  B.when

  C.why

  D.Whom

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• 44I can still remember that it is since the 1990's, _____ we began to use cell phones,_______ the number of mobile users has greatly increased．

  A.while; when

  B.when; what

  C.before; that

  D.when; that

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• 45_____I saw the West Lake, I was struck by its beauty.

  A.The first time

  B.For some time

  C.For the first time

  D.At the first time

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• 46Several weeks had gone by____________I realized the painting was missing.

  A.as

  B.before

  C.since

  D.when

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• 47________ the Internet is of great help, I don't think it's a good idea to spend too much  time on it.

  A.While　

  B.As　

  C.Because　

  D.If

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• 48He waited until it was dark ____ nobody could see him clearly.

  A.so that

  B.in order to

  C.although

  D.However

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• 49“You can't have your football back ____ you promise not to kick it at my dog again,” the woman said firmly.

  A.until

  B.when

  C.since

  D.because

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• 50Jennifer didn't attend the important conference,and that's _________she hadn't been got informed of it.

  A.why

  B.the reason

  C.because

  D.for

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