Question

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

Answer 1

答案B
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……”。