问题

Hi，madam．Can I take the story books out—No，my boy．They _____ be taken out of the reading-room．It’s a rule．

A:mustn't
B:needn't
C:couldn't
D:wouldn't;

正确答案是：

同类题型

________all the shortcomings you mentioned，he is a man to be depended on.[ ]

I don’ t mind _____the door.

The man is feeling much better now, so you ______ call a doctor.

Why did Miss Li leave the job?—She_____ for higher wages, but was turned down in the end.[ ]

I ________ when the UFO landed.