I hope everyone can care about the environment and stop things.A. protecting; wastingB.

问题补充：

I hope everyone can care about the environment and stop things.

A. protecting; wasting

B. protecting; to waste

C. protect; wasting

D. protect; to waste

答案：

(答案→)A. protecting; wasting

B. protecting; to waste

C. protect; wasting

D. protect; to waste

解析：care about中about是介词，后面接名词或者动名词作宾语，stop doing表示停止做此事，stop to do表示停下来去做此事，这句话的意思是“我希望每个人能注意保护环境并且停止浪费东西”，所以选A。