题目内容
— _______ we clean the classroom at once?
— No, you _______. You _______ clean it after school.
A. Must; needn’t; may B. Must; mustn’t; can. C. Shall; can’t; must D. Need; mustn’t; may
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题目内容
— _______ we clean the classroom at once?
— No, you _______. You _______ clean it after school.
A. Must; needn’t; may B. Must; mustn’t; can. C. Shall; can’t; must D. Need; mustn’t; may