The students are forbidden,unless they have special passes,

来源：百度知道 编辑：UC知道 时间：2024/05/05 11:31:59
The students are forbidden,unless they have special passes,

______after11:00p.m.
A.to stay out B.from staying out C.staying out D.not to stay out
A, 为什么不选B,C

The students are forbidden to stay out ,unless they have special passes。
学生们被禁止外出，除非他们有特别通行证。
不定式用法。两个动词之间用to隔开。

be forbidden to do sth.被禁止做某事
固定搭配的词组 不要被 unless they have special passes 误导

unless那句可以看作插入语，to表示到什么时候，可以理解为一种表示程度的词汇