這是情態(tài)動(dòng)詞加完成體的特殊意義
should have done
表示"本應(yīng)該做某事卻未做"
He must have an accident,or he should have been here then.
他一定出事故了,要不然他當(dāng)時(shí)會(huì)在這兒了
He must have an accident,or he ( ) here then.
He must have an accident,or he ( ) here then.
A.should have been B.should be C.would be D.were
為什么不選B 怎么看出前半句是過(guò)去完成時(shí)的?
A.should have been B.should be C.would be D.were
為什么不選B 怎么看出前半句是過(guò)去完成時(shí)的?
英語(yǔ)人氣：232 ℃時(shí)間：2020-02-05 20:22:13
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