--- Did he realize the serious situation immediately? --- No. It was quite a long time ______ he really realized it.

试卷相关题目

• 1Some people get in touch with each other by mobile phones______ others keep contact with each other by e-mail.

  A.when

  B.before

  C.while

  D.since

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• 2It may be 5 or 10 years __________ it is possible for people to find a space station on the moon

  A.since

  B.before

  C.after

  D.when

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• 3— Will you go to the museum tomorrow? — Yes, I will go _______ it's windy

  A.since

  B.as though

  C.if

  D.even though

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• 4The girl arranged to have piano lessons at the training centre with her sister________she would stay for an hour

  A.where

  B.who

  C.which

  D.what

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• 5I was about to leave for work ______the telephone rang.

  A.as

  B.until

  C.while

  D.when

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• 6______ you know, I am with my aunt and grandmother.

  A.Which

  B.As

  C.To

  D.In

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• 7You will succeed in the end ______  you give up halfway.

  A.if

  B.unless

  C.now that

  D.Until

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• 8We didn't know how we would be ________ the money had gone．

  A.before

  B.after

  C.when

  D.once

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• 9I had been looking for the book for two days _______ I found it at last

  A.until

  B.when

  C.while

  D.before

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• 10Although they did heavy work that day, ________ they were all in high spirits．

  A.yet

  B.so

  C.but

  D./

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