题目内容

Wolves becomes fewer than before because people ________ trees all the time．


  1. A.
    cut down
  2. B.
    cut off
  3. C.
    take off
  4. D.
    cut across
A
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相关题目

Wolves will live in a family ________ if they ________ in the wild．


  1. A.
    groups; are
  2. B.
    group will be
  3. C.
    groups; be
  4. D.
    group; is

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