Student: Professor Wang must I hand in the paper this week?Professor Wang: No ______. Yo

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Student: Professor Wang, must I hand in the paper this week?Professor Wang: No, ______. You can hand it in next week.

A.you mustn"t

B.you can"t

C.you needn"t

D.you shouldn"t

请帮忙给出正确答案和分析,谢谢!

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