题目内容

Stay awake！You should know that it ________to sleep in class.
A．doesn’t permitB．is not permitted
C．will not be permittedD．was not permitted
B
考查时态及语态，保持清醒！你应该知道课上不允许睡觉。根据语境应用一般现在时态，且表示被动，所以选C。
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