They ___ every means, but the engine __ work.


  1. A.
    tried; couldn't
  2. B.
    have tried; won't
  3. C.
    tried; won't
  4. D.
    have tried; can’t
B
the engine won't work意思是:機器不能行使其功能,不能啟動不用can't work的表達方式.
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