28.He didn't pass the examination. As a good student, he . A.should have failed B.shouldn't have failed C.must have, failed D.mustn't have failed 查看更多

 

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He didn’t pass the examination.As a good student, he ________.


  1. A.
    should have failed
  2. B.
    must have failed
  3. C.
    shouldn’t have failed
  4. D.
    mustn’t have failed

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He didn’t pass the examination.As a good student, he ________.

[  ]

A.should have failed

B.must have failed

C.shouldn’t have failed

D.mustn’t have failed

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