问题

Look at the boy running on the playground. Is it David? —It ______ be him. I saw him go to the teachers’ office just now.

A:mustn’t
B:can’t
C:couldn’t
D:must

正确答案是：

标签： boy , him , look

同类题型

This dress is ____. Can I ___?—– OK, here you are.

Now people like to write articles——computers not——–paper.

_____ you call back tomorrow?–Of course I can.

No one ___________ for a drive, because the weather is so bad.

A: Listen! Is it Linda singing in the next room? B: No, it __________ be her. She is still in Shanghai.