He was puzzled by this phenomenon. He began to try every approach _________ the best way of working it out.

试卷相关题目

• 1–Do you know the ______ woman by the chairman? --Yes. But could you introduce to me the man _______ by the reporters?

  A.smiling; questioned

  B.smiled; questioning

  C.being smiled; questioned

  D.to smile; to question

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• 2I have had my bike ________ , and I'm going to have John ________ my radio tomorrow.

  A.repair; to repair

  B.repairing; to be repaired

  C.repaired; repair

  D.to repair; repairing

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• 3I have never dreamed of _______ for me to win the first prize in the 1000-meter race.

  A.there was a chance

  B.there being a chance

  C.it being a chance

  D.it was a chance

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• 4—What's made you so upset? —  ________  with my best friend.

  A.Quarrel

  B.Quarrelling

  C.Because of quarrelling

  D.Since I quarreled

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• 5Some medicine，when wrongly ________ ，can kill a person. 

  A.take

  B.taking

  C.taken

  D.to take

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• 6 It is reported that a bus rolled into a deep valley ,________ 10 deaths and even more injuries .

  A.to cause

  B.having caused

  C.caused

  D.causing

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• 7________to be the greatest writer of plays in the English-speaking world, Williams Shakespeare is more famous than he was in his own lifetime.

  A.Considered

  B.To be considered

  C.Having considered

  D.Considering

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• 8_________ to sunlight for too much time will do harm to one's skin.

  A.Exposed

  B.Having exposed

  C.Being exposed

  D.After being exposed

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• 9It's their duty for the soldiers ________ our country ________ our enemies.

  A.to prevent; from

  B.to keep; from

  C.to protect; from

  D.to stop; from

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• 10Five books on the shelf are found ______.

  A.tear

  B.tearing

  C.tore

  D.torn

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