问题

What do you think we can do for these sad people?— You ____ do anything except to wait quietly.[ ]

A: don't have to
B: oughtn't to
C: mustn't
D: can't

正确答案是：

同类题型

The students are busy making preparations for the lecture because they will ______ the competition.

______for his views about his teaching job, Philip said he found it very interesting and rewarding.

I’m sure David _________ when we get home

The touch they had both kept in ＿＿＿many years broke

I’m sure that your letter will get attention. They know you’re waiting for the reply .