问题

I don’t mind telling you what I know. —You _____. I can manage it myself.

A:mustn’t
B:ought not to
C:can’t
D:don't have to

正确答案是：

同类题型

Cigarette smoking is a major factor____to cancer.[ ]

The 7:30 plane hasn’t turned up yet.—-It has gone off its tokeep away from the sudden storm

We learned to dive, ________ meals outside and sleepin a tent.

Helen is 15 years old, and Joan is 15, too. So Helen is________Joan.

,let’s go out for dinner— Idon’t have to cook