He was so crazy about the book that he had read it for two hours ________ he realized the time．

试卷相关题目

• 1________ I came into the office, the teachers were having a meeting．

  A.While

  B.When

  C.Once

  D.Since

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• 2Put that money somewhere safe ________ it gets stolen．

  A.before

  B.after

  C.when

  D.while

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• 3Why do you want a new job ________ you have got such a good one?

  A.that

  B.where

  C.which

  D.when

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• 4You are not to leave ________．

  A.except you are told

  B.as you are told

  C.until you will be told

  D.until you are told

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• 5________, Alexander Graham Bell was still a young man．

  A.He invented the telephone

  B.The telephone was invented

  C.His invention of the telephone

  D.When he invented the telephone

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• 6Will it be two weeks ________ we can go back home?

  A.that

  B.when

  C.after which

  D.before

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• 7She went out angrily ________ I realized what was happening．

  A.while

  B.before

  C.when

  D.after

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• 8They worked long hours for several weeks ________ everything returned to normal．

  A.before

  B.when

  C.since

  D.unless

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• 9This news is very important, so ________ he comes here, you must tell me at once．

  A.when

  B.while

  C.as

  D.whenever

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• 10Do you know when ________?

  A.does the basketball game begin

  B.begins the basketball game

  C.the basketball game begins

  D.will the basketball game begin

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