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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 177

The boss____________ the worker how to do it, or the accident couldn't have happened.

A.can't have told B.ought to tell
C.could have told D.mustn't have told
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Thebosstheworkerhowtodoit,orth