The shoe was discovered on the Chilkoot Pass, the famous trail used by people ______ gold in Alask

试卷相关题目

• 1Once ______ , the plan can't be changed.

  A.begin

  B.beginning

  C.began

  D.begun

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• 2Most parents encourage their children to take an active part in social events, ______ those events do not interfere with their studies.

  A.concerning

  B.until

  C.unless

  D.provided

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• 3How many men does your uncle _________ for him?

  A.have worked

  B.have been worked

  C.have working

  D.have been working

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• 4The company has introduced new technologies from the US, thus _______ its production.

  A.has increased

  B.increased

  C.increasing

  D.being increased

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• 5His life is in such a mess as leads to _____ in an unpleasant cycle.

  A.him caught

  B.his being caught

  C.him to be caught

  D.his catching

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