Question

— Why can’t I smoke here?
— At no time ____ in the meeting room.

A．is smoking permitted	B．smoking is permitted
C．does smoking permit	D．smoking does permit

Answer 1

A

答句中否定介词短语at no time位于句首，表明了句子的主谓结构应采用部分倒装的形式，即将句中的助动词调至主语之前。根据句子意思该句为被动语态，排除选项B、C、D。