--Must I finish my homework now?--No, you _______ You can do it tomorrow.A. can"
题型：不详难度：来源：
--Must I finish my homework now?
--No, you _______ You can do it tomorrow.
A. can"t B. needn"t C. mustn"t |
答案
| B |
解析
试题分析：试题分析：must的含义是必须一定，其否定形式mustn’t表示禁止的含义。故must的否定回答一般借助于needn’和don’t have to来构成，句意:我现在必须完成我的作业吗?根据前文no，可知下文为否定回答，故选B。
点评：must的否定形式是常考内容之一，结构比较固定，熟记即可。 |
举一反三
— Simon, when are we going to have a class meeting this week?
— Sorry. Ask our monitor, please. He know. |
— Be quiet, the head teacher Mr. Gu is coming.
— Don’t worry. It _____ be him. Mr. Gu is much fatter.| A．mustn’t | B．may not | C．needn’t | D．can’t |
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— Do you know whose magazine is it?
— I think it be Lily’s, for we can find her name on the cover.| A．can | B．might | C．could | D．must |
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---Is the girl in the red skirt your sister?
---No. It _______ be her. She has flown to Australia.| A．can’t | B．needn’t | C．must | D．may |
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---Must we leave the classroom now?
---No, you _____. You _____ leave after the bell rings.| A．mustn"t; are allowed to | B．don"t have to; might | | C．needn"t; can | D．can"t; are supposed to |
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