问题

The man in a black suit ___ be our youth worker. — I’m sure it _ be him. I saw him in the laboratory building some minutes ago.

A:must; can’t
B:can; mustn’t
C:can; could
D:must; won’t;

正确答案是：

同类题型

didn’t you try to finish thecomposition— I tried to , butI could, the bell rang announcing the end of the examination time

He is in good _______. He’s pretty ________.

There’ll be billions of people to watch the SpringFestival gala on TV tonight.——I know. The whole world______．It’s a really wonderful event.

The reporter says that the CCTV English programs ever since 1977.

I’d rather have a room of my own, however small it is, than _________ a room with others.