you should finish your homewoek ------- you go out to play.

问题描述:

you should finish your homewoek _______ you go out to play.
用 before 还是用 after?
为什么? 参考答案为after,百思不得其解!答案错误?
1个回答 分类:英语 2014-09-17

问题解答:

我来补答
efore
 
 
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