I spend half an hour finishing doing homework

问题描述:

I spend half an hour finishing doing homework
怎么要用 finishing doing 啊,怎么解释啊
1个回答 分类:数学 2014-12-15

问题解答:

我来补答
我花了半小时做作业.
首先,spend一段时间,后面要跟DOING(即finishing)
其次,finish后面跟动词,也应该是doing(即doing)
 
 
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