问题

Must I return the book tomorrow?—No, you ________.You can keep it for three days.

A:mustn't
B:needn't
C:can't
D:may not

正确答案是：

同类题型

At ，we eat rice dumplings and have a boat race.

Having walked in the desert for several days, we feltexhausted, but we had to find a pool before water in the bottle ____.

How is it going B: ______________

We should do as much as we can _____our country better and more beautiful: [ ]

Nowadays, the children ______ the bad habit of turning on the TV as soon as they come back from school.