◎ 题干
Stay awake!You should know that it________to sleep in class.
[     ]
A. doesn't permit 
B. is not permitted
C. will not be permitted  
D. was not permitted
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Stay awake!You should know that it________to sleep in class. [ ]A. doesn't permitB. is not permittedC. will not be permittedD. was not permitted…”主要考查了你对  【一般现在时的被动语态】  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。