did you know -------?A what they happend?B what happend to t

问题描述:

did you know _______?A what they happend?B what happend to them?
这两个答案我很不确定,哪一个是正确的?
1个回答 分类:英语 2014-10-22

问题解答:

我来补答
Did you know what happened to them?
 
 
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