It has been proved _________eating vegetables in childhood helps to protect you against serious illnesses in later life.     

试卷相关题目

• 1The American Civil War lasted four years _________ the North won in the end.  

  A.after

  B.when

  C.before

  D.then

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• 2The little boy won't go to sleep _________  her mother tells a story.     

  A.or

  B.until

  C.but

  D.whether

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• 3Many people can't learn any lessons from the mistakes they've made _____ they get hurt somehow.   

  A.whether

  B.unless

  C.if

  D.as

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• 4I study hard ________ I may not fail in the examinations.

  A.so as to

  B.in order to

  C.in order

  D.so that

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• 5Although he is considered a great writer, __________.

  A.his works are not widely read

  B.but his woks are not widely read

  C.however, his works are not widely read

  D.still his works are widely read

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• 6Though the problems were all very hard, Kate kept on working on them ________ she finally solved all of them.   

  A.before

  B.until

  C.when

  D.after

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• 7We'll not attend his party _____ we are invited.

  A.on condition

  B.unless

  C.whenever

  D.as though

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• 8Normally, it will be quite a few years _______ an earthquake-stricken area returns to what it used to be. But Wen Chuan in China has created a miracle.     

  A.when

  B.that

  C.before

  D.since

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• 9This policy encourages companies to introduce new technologies ________ take part in the Internationalcompetition.

  A.as good as

  B.as long as

  C.as soon as

  D.as well as

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• 10—Do you have a minute? I've got something to tell you. —OK, ________ you make it short.

  A.now that

  B.if only

  C.so long as

  D.every time

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