Stay awake,you should know that you( ) to sleep.A.are not permitted B.doesn't permit

问题描述:

Stay awake,you should know that you( ) to sleep.A.are not permitted B.doesn't permit
我选的是A,但答案上选的是B
我觉得应该用被动啊,这里的用法是?

答案有误,相信你自己的判断.