21．A．mustn't B．couldn't C．needn't D．shouldn't 【查看更多】

 

題目列表(包括答案和解析)

—Must I finish my home work today?

—No, you _____. You may finish it tomorrow.

A．mustn’t              B．shouldn’t              C．needn’t              D．couldn’t

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Though he explained it carefully, I ________ understand him．

[　　]

A．couldn’t

B．mustn’t

C．shouldn’t

D．needn’t

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— Must I finish that work today?

— No, you _____. You may finish it in three days.

A．mustn’t

B．needn’t

C．shouldn’t

D．couldn’t

 

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——Can I walk across the road now, mum?

——No, you_______. You have to wait until the light turns green.

A．couldn't          B．shouldn't          C．mustn't           D．needn't

 

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(2006年徐州市)

--- Must I finish that work today?

--- No, you ________. You may finish it in three days.

[　　]

A．mustn't
B．needn't
C．shouldn't
D．couldn't

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