A cook will be immediately fired if he is found in the kitchen.A. smokeB. smokingC. to sm

问题补充：

A cook will be immediately fired if he is found in the kitchen.

A. smoke

B. smoking

C. to smoke

D. smoked

答案：

A. smoke

(答案→)B. smoking

C. to smoke

D. smoked

解析：考察非谓语动词，该处表示的是他被发现的时候正在厨房吸烟，所以选择doing