what you had done added to our difficulties.帮忙分析这个句子

问题描述:

what you had done added to our difficulties.帮忙分析这个句子
为什么add后要加ed
1个回答 分类:英语 2014-11-14

问题解答:

我来补答
what you had done主语 added to 谓语 our difficulties宾语
add 作谓语动词 ,加ed 是过去式.
 
 
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