题目内容：

To make our school more beautiful,_____.
a.there is a lot to be done.
b.it's important to plant more trees.
c.we should protect the envirornment better.
d too much remains to be done.

优质解答

选C
不定式做目的状语；主语是人更合适.

追问：

但是感觉 protect the environment better 表达不怎么正确，是不是该把better去掉呢？

追答：

不去掉也可以的。意思是更好的保护环境