【題目】 —Could you please have a walk with me?

—Sorry, I _______. I have something important to do now.

A. mustn’t B. needn’t

C. can’t D. may not

【答案】C

【解析】

試題分析：句意：－你可以和我一起去散步嗎？－對不起，我現(xiàn)在有重要的事情要做。A. mustn’t ，不準(zhǔn)；B. needn’t ，不需要；C. can’t ，不能；D. may not，不可以。根據(jù)意思，我現(xiàn)在有要事要辦，不能起散步。故選C。

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