Question

Can I smoke here?-----No,at no time ___in the reading room.

A. smoking permits B is smoking permitted C.smoking is permitted D.does smoking permit
答案选B 为什么不能选其它的呢？谢谢

Answer 1

Can I smoke here?-----No,at no time ___in the reading room.
选B
这是一句否定副词短语放句首的部分倒装
结构是
【否定副词短语+助动词+动词（谓语）+宾语】
这边吸烟是被允许的，所以要用被动
只能选B
有不会的可以再问我

Answer 2

这个句子是倒装 因为at no time 已经提前了 A permit是及物动词没有宾语就要用被动形式。C没倒装。D DOES 助动词后面得接动词原型 况且抽烟 和允许 有2个动词了 所以排除 permit是及物动词没有宾语就要用被动形式

Answer 3

除非修饰主语，任何否定词或短语开头时，句子都要倒装。又如：
1 She did little work for us-------- Little work did she do for us.
2 John has never been to London.-------Never has John been to London.
3 Few people have been to the moon.--------这句不能倒装，因为few people是主语。