问题

Itbe difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.

A:mustn't
B:ought to
C:needn't
D:can't

正确答案是：

同类题型

(2014·河北保定模拟)The authorities will________the case further before they can come to a conclusion about it.

_may have a chance to be successful if he tries his best.

The manager demanded that the work________ within three days.

This bookten units,three mainly revision.

下列各句中，没有语病的一句是