◎ 题干
—May we leave the classroom now?
—No,you _____ . You ______to leave until the bell rings.
[     ]
A. mustn't; are allowed        
B. don't have to; are supposed
C. needn't; aren't allowed      
D. can't; aren't supposed
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—May we leave the classroom now? —No, you _______. You ________ to leave until the bell rings. [ ]A. mustn't; are allowed B. don't have to; are supposed…”主要考查了你对  【情态动词】【被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。