自考《英语（一）》真题练习：情态动词推测语气的用法

单选题

1.She_____the film.She knows nothing about it.

A.can't see

B.can't have seen

C.must see

D.mustn't have seen

正确答案：B

答案解析：can't have done，表示对过去发生情况的否定推测，意为“不可能已经……”。