The desk is not dirty. You _____clean it.[ ]A. mustn'tB. shouldn't C. needn't D. can&

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• — Have you heard that some bad thing would happen in 2012?— Don't worry! The news_____ be true.
• With the help of the new technology, you_____ e-mail your friends by mobile phone.[ ]A. canB. mustC.
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• You look too tired. Yourest andwork too much.[ ]A. should; shouldB. shouldn't; shouldn'tC.
• You go and ask Meimei. Sheknow the answer.[ ]A. must, may B. must, stayC. need, can D. can, may-七年级英
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• Boysandgirls , don'tforget your report. It____ today.[ ]A. can't finishB. can't be fi
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