问题

Look at the boy playing basketball on the ground. Is it George— It ________ be him. He told me he would play basketball after class, but he’s not sure.

A:mustn’t
B:must
C:can’t
D:may;

正确答案是：

同类题型

In the past we lost many chances, _______ we paid little attention.

He likes to use words _________ is clear to her.

The class teacher came up and put a jacket _____ the boy to prevent him from catching a cold .

Could you please come to the museum with me this afternoon—Sorry， I ______ . I have to take a piano lesson at 2 pm.

It is generally believed that teaching is_____ it is science[ ]