I think that it is necessary in protect the environment.用英语怎么解释句子

问题描述:

I think that it is necessary in protect the environment.用英语怎么解释句子

我认为那是保护环境所必须要的

In my opinion,we should protect the environment.

I think this sentence should be
I think that it is necessary in protecting environment.

we should protect the environment.

I think that it is necessary in protect the environment.
我认为保护环境是很重要的.