问题

Never _______ protecting our earth. It is the only nice planet for us to live on.

A:leave for
B:out
C:give up
D:look up;

正确答案是：

同类题型

下列词语中加点的字，读音全部正确的一组是（）

This dictionary, few pages ___are missing, is of great importance

Look, does the girl over there look lovely–Yes, she is in a_______ coat.

Do you know the girl ________ is in red — Yes, she is my friend, Kate.

llionaire passed away, leaving hischildren with a large ________