I’ll do everything I can you out.A. helpingB. helpC. helped D. to help

问题补充：

I’ll do everything I can you out.

A. helping

B. help

C. helped

D. to help

答案：

A. helping

B. help

C. helped

(答案→)D. to help

解析：句意：我将做一切我能做的帮助你解决困难。to help you out,表示目的。I can,是定语从句，修饰everthing,故选D。