----Must we clean the classroom now?----No, you _________. It _________ after sc
题型：不详难度：来源：
----Must we clean the classroom now?
----No, you _________. It _________ after school.| A．needn’t, must be cleaned | B．mustn’t, needn’t be cleaned | | C．needn’t, can be cleaned | D．don’t have to, may clean |
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答案
| C |
解析
试题分析：句意为：---我们现在必须打扫教室吗？---不必。教室可以放学后打扫。must引起的一般疑问句，其否定回答应用needn’t，表示不必。根据语境，it（指教室）是动作的承受者，应用被动语态。故选C。 |
举一反三
| John with his parents _________ been in Australia for about two years. |
People should _________ down trees in order to protect the environment.| A．be stopped to cutting | B．stop to cut | | C．be stopped from cutting | D．stop from cutting |
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---Oh, you can take __________ of them. I’ll keep none.| A．both | B．all | | C．neither | D．either |
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---Really? You must ___________ children, I think.| A．be good at | B．be good for | | C．be afraid of | D．be good with |
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---I’m _________ the Internet.| A．looking at | B．looking through | | C．looking up | D．look after |
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