________ regular exercise is very important, it's never a good idea to exercise too close to bedtime.

试卷相关题目

• 1Water is a liquid which has no color _______ you wash your hands in it, then it turns black.

  A.before

  B.until

  C.since

  D.because

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• 2Allow children to voice their opinions, _________ they are different from your own.

  A.until

  B.even if

  C.unless

  D.as though

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• 3Good friends __________ we are, I still find her difficult to understand at times.   

  A.as

  B.because

  C.though

  D.unless

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• 4It has been ten years_____ her cousin joined the army.     

  A.before

  B.until

  C.when

  D.since

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• 5Mary made coffee ________ her guests were finishing their meal.

  A.so that

  B.although

  C.while

  D.as if

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• 6It'll be 3 days _____ he _____ back from his hometown.

  A.when; will come

  B.after; will come

  C.since; comes

  D.before; comes

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• 7_______you've got a precious chance, you might as well make full use of it.

  A.In case

  B.Now that

  C.Even though

  D.The moment

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• 8I don't believe we've met before, ________ I must say you do look familiar.

  A.therefore

  B.although

  C.since

  D.unless

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• 9What an unforgettable experience!I'll write it down _____ it is still fresh in my memory.

  A.since

  B.while

  C.after

  D.until

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• 10Schools in the east tend to be better equipped, __________ those in the west are relatively poor.

  A.As

  B.While

  C.When

  D.But

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