Could you please not here? A. smokingB. smokeC. to smokeD. smoked

问题补充：

Could you please not here?

A. smoking

B. smoke

C. to smoke

D. smoked

答案：

A. smoking

(答案→)B. smoke

C. to smoke

D. smoked

解析：情态动词could后加动词原形，故本题选B。