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36．Student: ProfessorWang, must I hand in the paper this week?
Professor Wang: No, ____. You can handit in next week.
A．you mustn't B．you can't
C．you needn't D．you shouldn't
答案与解析：
选C (you needn't)。本题考查情态动词的用法。句意：学生：王教授，我这周必须交论文吗？王教授：不，不需要。你可以下周交。通常回答must都用need来表示。
