Why not help when you were in danger?A. you ask forB. ask forC. asking forD. to ask for

问题补充：

Why not help when you were in danger?

A. you ask for

B. ask for

C. asking for

D. to ask for

答案：

A. you ask for

(答案→)B. ask for

C. asking for

D. to ask for

解析：句意：当你处于危险当中时，为什么不请求帮助？固定句式why not do sth，为什么不做某事，表示用来提出某种建议等，注意not后面接动词原形，故选B。