—Must I come back before supper, mum?—No, you .A．can’tB．mustn’tC．don’tD．n

题型：不详难度：来源：

—Must I come back before supper, mum?
—No, you .

A．can’t

B．mustn’t

C．don’t

D．needn’t

答案

解析

考查must的否定回答.句意:妈妈,我必须在晚饭前回来吗?_不,你不必.以must开头的一般疑问句，其否定性回答要借助于needn’t或don’t have to.结合所给选项,可知选D.

举一反三

-----Can I watch TV, Mom?
-----No, you . You to do your homework first.

A．don’t; have

B．can’t; can’t

C．can’t; have

D．do; must

题型：不详难度：| 查看答案

— May I take the magazine out of the reading room?
— No, you can’t. You ______ read it here. It’s the rule.

A．must

B．would

C．may

D．might

题型：不详难度：| 查看答案

Kids _________ use the computers to draw in the future.

A．can

B．could

C．will be able to

D．will can

题型：不详难度：| 查看答案

Everyone ______ be polite to the old people.

A．may

B．should

C．can

D．could

题型：不详难度：| 查看答案

— Are you going to Beijing by air?
— It’s fast, but expensive. So I’m not sure. I _____ take a train.

A．may

B．will

C．must

D．should

题型：不详难度：| 查看答案