题目内容
The manager ______ the worker how to do it, or the accident couldn’t have happened.
A. couldn’t have told B. ought to tell
C. could have told D. mustn’t have told
A
解析:
略
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题目内容
The manager ______ the worker how to do it, or the accident couldn’t have happened.
A. couldn’t have told B. ought to tell
C. could have told D. mustn’t have told
A
略