let's stop__ to keep the earth beautiful and clean.pollute)

问题描述:

let's stop__ to keep the earth beautiful and clean.pollute)
polluting还是pollution?

stop doing sth 停止正在做某事
stop polluting 停止污染呵呵,我也是这么想的。可是答案是pollution大家看看可以是pollution吗?要硬要pollution,也可以,就是stop sth的用法。