at that time是表示故去時(shí)間的狀語,不可以用過去完成時(shí)態(tài).此題目考查情態(tài)動詞表推測的用法,選擇C.
They (must have seen ) the film at that time.
翻譯：那時(shí)侯他們一定是看電影.They (must have seen ) the film at that time.是不是現(xiàn)在完成式？不是現(xiàn)在完成時(shí)，而是對過去的推測判斷。又如：He must have gone to the Great Wall last Sunday。上周日他一定是去長城了。
They ( ) the film at that time.
They ( ) the film at that time.
A.may see B.mustn't see C.must have seen D.can have seen 書上答案是c,為什么不用過去完成式?求幫忙分析.
A.may see B.mustn't see C.must have seen D.can have seen 書上答案是c,為什么不用過去完成式?求幫忙分析.
英語人氣：878 ℃時(shí)間：2019-12-13 03:36:04
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