Tom, you _____ leave all your clothes on the floor like this!A．wouldn’tB．mustn’t

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Tom, you _____ leave all your clothes on the floor like this!

A．wouldn’t

B．mustn’t

C．needn’t

D．may not

答案

解析

本句是一个主从复合句，主句含有情态动词can，动作go还未发生，属于将来时；因此，when引导的时间状语从句要用现在时；当go动作发生时，finish动作已经完成了，故选 C。当然，空格出还可以用finish。如：

She will go to bed when she has done/ finishes her homework.

You can go to play football if you have finished your work.

举一反三

It is a good example of a site that many people think _____ to change.

A．need

B．to need

C．needs

D．needing

题型：不详难度：| 查看答案

I _____ you would come today. You _____ me a phone call in advance.

A．don’t expect; should have given

B．didn’t expect; could have given

C．hadn’t expected; ought to give

D．didn’t expect; can have given

题型：不详难度：| 查看答案

Why _____ you always interrupt me?

A．must

B．may

C．can

D．will

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He _____ without saying good-bye to them, for he always has good manners.

A．mustn’t have left

B．may not leave

C．shouldn’t have left

D．can’t have left

题型：不详难度：| 查看答案

—Don’t forget to take the message to my teacher.

—_____.

A．Yes, I will

B．No, I won’t

C．I don’t’ think so

D．Sorry, I don’t

题型：不详难度：| 查看答案