题目内容
He ___ at the meeting this morning.He was in hospital at the time.
- A.couldn’t have spoken
- B.mustn’t have spoken
- C.shouldn't have spoken
- D.needn’t have spoken
A
作“不可能”一类的否定推测,不要用mustn’t,而要用couldn’t.
作“不可能”一类的否定推测,不要用mustn’t,而要用couldn’t.
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