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

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……”。