The government requested that all the people in any indoor public area.A. not to smoking

问题补充：

The government requested that all the people in any indoor public area.

A. not to smoking

B. not smoke

C. not smoking

D. to not smoke

答案：

A. not to smoking

(答案→)B. not smoke

C. not smoking

D. to not smoke

解析：考查虚拟语气。动词request后面的宾语从句使用虚拟语气should+动词原形；should可以省略。本题在not前面省略了should；句意：政府要求所有人在公众场合都不要抽烟。故B正确。