Stay awake! You should know that it to sleep in class.A. doesn’t permitB. is not permitte

问题补充：

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：

A. doesn’t permit

(答案→)B. is not permitted

C. will not be permitted

D. was not permitted

解析：考查时态和语态。句意：醒醒!你应该知道在教室里是不允许睡觉的。根据句意说明这是一项规章制度，是一种进行时，习惯性的要求，故使用一般现在时即可，根据句意可知要使用被动语态。故B正确。