We should prevent such a silly mistake _____ again.

试卷相关题目

• 1You can't imagine what great trouble they have _____ the problem _____.

  A.to solve; being talked about

  B.solving; discussing

  C.to solve; to talk about

  D.solving; being discussed

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• 2A new technique _________ out, the yields (收成) increased by 20% .

  A.having working

  B.having been working

  C.has worked

  D.had been worked

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• 3I'm hungry. Get me something _________.

  A.eat

  B.to eat

  C.eating

  D.for eating

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• 4_____, tears came down.

  A.Hearing the bad news

  B.Heard the bad news

  C.when to hear the bad news

  D.When he heard the bad news

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• 5“ Have you decided when ________?”  “ Yes, tomorrow morning.”

  A.to leave

  B.to be leaving

  C.will you leave

  D.are you leaving

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• 6Henry can't attend the party _____ at Tom's house at present because he is preparing the speech at the party _____ at Marie's house tomorrow.

  A.held; being held

  B.to be held; to be held

  C.to be held; held

  D.being held; to be held

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• 7Studies show the electronic devices people have made much use of _______ music may be causing hearing loss in many people.

  A.enjoy

  B.to enjoy

  C.enjoying

  D.enjoyed

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• 8The new machine，if _________ properly，will work at least ten years.

  A.use

  B.using

  C.being used

  D.used

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• 9There're so many kinds of tape-recorders on sale that I can't make up my mind _____ to buy.

  A.what

  B.which

  C.how

  D.where

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• 10 There is nothing more I can try _______ you to stay, so I wish you good luck.

  A.being persuaded

  B.persuading

  C.to be persuaded

  D.to persuade

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