John couldn't finish his words _____ something had struck his throat.

试卷相关题目

• 1You'll not succeed _____ you work hard.

  A.when

  B.if

  C.unless

  D.because

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• 2'Sorry, sorry…', he whispered, _____ talking to himself.

  A.while

  B.even if

  C.as if

  D.when

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• 3There was an old man wandering about the corner _____ waiting for someone.

  A.even though

  B.even if

  C.as if

  D.in case

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• 4That was really a splendid evening. It's years _____ I enjoyed myself so much.

  A.when

  B.that

  C.before

  D.since

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• 5— What was the party like? — Wonderful! It's been years _____ I enjoyed myself so much.

  A.after

  B.before

  C.when

  D.since

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• 6The little boy won't go to sleep _____ his mother tells him a story.

  A.or

  B.unless

  C.but

  D.whether

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• 7You'd better take an umbrella _____ it rains.

  A.in case

  B.unless

  C.as long as

  D.ever since

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• 8_____ I accept that he is not perfect, I do actually like the person.

  A.While

  B.Since

  C.Before

  D.Unless

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• 9— Haven't seen Lucy recently, what's happened? 一 Oh, it's more than two months _____ she worked here.

  A.which

  B.that

  C.before

  D.since

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• 10It never occurred to humans until the mid-1990s _____ some animals can be cloned.

  A.where

  B.that

  C.when

  D.what

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