If we know more about _______causes the problem, we may take measures before it is _______late.

试卷相关题目

• 1---- I wonder how much you charge for your services. ---- The first two are free ____  the third costs $30.

  A.while

  B.until　　

  C.when

  D.Before

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• 2Napoleon's story proves that to be a hero has nothing to do with size,_______with a smart mind and a brave heart.

  A.and

  B.so

  C.or

  D.But

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• 3The little boy ran away_________I could asked him something about his lessons．

  A.until

  B.when

  C.before

  D.Since

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• 4No sooner had we reached the top of the hill _____ we all sat down to rest.

  A.when

  B.then

  C.than

  D.until

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• 5The little boy was taken into the small house________ door faced the south

  A.that

  B.which

  C.whose

  D.Its

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• 6Dorothy was always speaking highly of her role in the play, _______ of course, made the others unhappy.

  A.who

  B.which

  C.this

  D.That

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• 7--- How long has this bookshop been in business?     --- _________ 1985.

  A.After

  B.In

  C.Since

  D.From

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• 8The college education system should be reformed ______ it can follow the pace of the economic development.

  A.so long as

  B.so that

  C.only if

  D.even though

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• 9His family members gave some examples of ______ his drinking and smoking had affected the family.

  A.that

  B.what

  C.how

  D.Whether

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• 10The problem lies in ______ the mist may become a thick fog , making the situation even worse.

  A.that

  B.which

  C.what

  D.that whether

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