-We should collect some rubbish _____ the environment.

-We should collect some rubbish _____ the environment.
-Let's go to the park to do that,_____?
-Good idea.
A.to help protect；shall we B.help to protect；will you
C.to help protecting；shall we D.helping protect；will you
说明原因喔,还要整句翻译吧

A
翻译：我们应该收集垃圾来为保护环境做些事情.
让我们去公园来做这件事吧,好吗?
好主意
用动词不定式表目的； help do sth
let's do sth.的反义疑问句用,shall we
不明白的再问哟,请及时采纳,多谢 !