13. They were surprised that a child ______ work out the problem while they them

题型：不详难度：来源：

13. They were surprised that a child ______ work out the problem while they themselves couldn’t.

A．should

B．would

C．could

D．might

答案

解析

略

举一反三

15． I got so angry at the news that I ______ her.

A．should kill

B．might kill

C．must have killed

D．could have killed

题型：不详难度：| 查看答案

3 You can’t imagine such a beautiful girl ______ say such rude words.
A might B need C should D may

题型：不详难度：| 查看答案

_______ it be true that the road is being blocked at this moment, for cars are moving like snails inch by inch

A．may

B．should

C．can

D．must

题型：不详难度：| 查看答案

No student _________ go out of the school campus after ten o’clock at night without permission, according to the school regulations.

A．will

B．must

C．may

D．shall

题型：不详难度：| 查看答案

– May I go swimming in the lake, Mum?
– No, you . It’s too dangerous.

A．mustn’t

B．may not

C．won’t

D．needn’t

题型：不详难度：| 查看答案