问题
选择题
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
答案：B
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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：B