．— Why does Michael know so much about Angkor Watt?　　　　— He ________ have been t

题型：不详难度：来源：

．— Why does Michael know so much about Angkor Watt?
　　　　— He ________ have been there, or...

A．must

B．oughtn’t to

C．may

D．can’t

答案

解析

略

举一反三

The company guaranteed a call-back policy_______their products have any risk in safety.

A．should

B．might

C．could

D．would

题型：不详难度：| 查看答案

___________it in the flesh, I would never have known the drought in southwest China is so serious and people are suffering so much.

A．Had I not seen	B．If I did not see
C．Should I not see	D．Were I not seen

题型：不详难度：| 查看答案

Curious about the world around them, children___________ask their parents endless questions.

A．can

B．may

C．shall

D．will

题型：不详难度：| 查看答案

—Where is Lu Wenjie?

—I have no idea．He__________ be in the library.

A．can

B．must

C．might

D．shall

题型：不详难度：| 查看答案

The train was ten minutes late , so I _______ have run all the way from my house to the station.

A．couldn’t

B．shouldn’t

C．needn’t

D．mustn’t

题型：不详难度：| 查看答案