题目内容：

We have just one globe____we can live.We should try our best___it well.
A:in which;protect B:with which;protecting C:on which;protecting D:on which; to protect

优质解答

前一句是地点状语从句 由于live on 意思是“居住在.”修饰globe要用on which .try one's best to do sth.是固定搭配 意思是"尽力去..."