Question

— I think Mr. Zhang may be in his office.
— No, he _____ be there. I saw him ____ there just now.

A．can’t; went

B．mustn’t; left

C．can’t ; leave

D．may not; going

Answer 1

C

句意:我认为张先生可能在他的办公室。不，他不可能在那。我刚刚看见他离开了。can’t不可能；mustn’t不可以；may not;可能不。See sb do sth 看见某人做了某事，所以选C。