John _____ his students is playing basketball on the playground.

试卷相关题目

• 1_____ I could say a word, she had stormed out of the room.

  A.Before

  B.When

  C.After

  D.Until

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• 2You'd better take an umbrella with you _____ it rains.

  A.for

  B.because

  C.in case

  D.since

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• 3It will be some time _____ we know the full results.

  A.if

  B.since

  C.when

  D.before

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• 4____ most of the earth's surface is covered by water, fresh water is very rare and precious.

  A.As

  B.Once

  C.If

  D.Although

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• 5Last month I came to Britain. My English has improved a lot _____ I use it all the time.

  A.since

  B.while

  C.when

  D.as

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• 6_____ she has been given such a chance, I think she should make full use of it.

  A.As soon as

  B.After

  C.Although

  D.Now that

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• 7I'd better go and have a try _____ there is an advertisement for a traveling salesman.

  A.where

  B.so that

  C.though

  D.now that

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• 8_____ time goes on, people _____ better housing and jobs.

  A.When; want

  B.While; need

  C.As; demand

  D.Since; ask

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• 9_____ I understand what you say, I can't agree with you.

  A.If

  B.While

  C.When

  D.As

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• 10He decided that he wouldn't attend her birthday party ____ he was invited to.

  A.because

  B.as if

  C.as though

  D.even if

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