He ____ at the meeting this morning. He was in hospital at the time.
A.couldn't have spoken B.mustn't have spoken C.shouldn't have spoken D.needn't have spoken正确答案A
He ____ at the meeting this morning. He was in hospital at the time.
A.couldn't have spoken B.mustn't have spoken C.shouldn't have spoken D.needn't have spoken正确答案A
