24. —Why can't I smoke here?

—At no time__________ in the meeting-room

A. is smoking permitted                       B. smoking is permitted

C. smoking is it permitted                  D. does smoking permit

______ the first to use nuclear weapons.

　　A. At no time China will be

　　B. Never China will be

　　C. Will China never be

　　D. At no time will China be

— 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

Everyone must obey the rule: at no time         in the passage.

A. bicycles are permitted          B. are permitted bicycles

C. are bicycles permitted          D. bicycles permitted

-Why can’t I smoke here?

   --At no time__________ in the dormitory.

A. is smoking permitted                     B. smoking is permitted

C. smoking is allowed                       D. does smoking permit