He insisted that we all _____ in his office at one o’clock.

一Could you tell me what happed last night ?一I can't go into detail now because it _______ take too long. 

Alice said she was really busy this week, but I think she________ show up at the party if she doesn’t have to work overtime on Friday.

— I saw Mr Li at the meeting yesterday.— Did you? He _______ have attended it, for he had asked for sick leave.

—Did you meet with the famous space hero , Yang Liwei ?—        I had come here earlier !