Why don't you spend money on your books?(改为同义句) Why ____ ____ money on your books?

问题描述:

Why don't you spend money on your books?(改为同义句) Why ____ ____ money on your books?

not spend
why don't you do sth ? = why not do sth?你确定?= =很确定,这个知识我们英语老师重复过n次了。