填空:The police think the old man must have ----(联系) with the

问题描述:

填空:The police think the old man must have ____(联系) with the number that happened last night.
速度啊!
1个回答 分类:英语 2014-10-28

问题解答:

我来补答
contacted 再答: contact with与……联系。用过去分词是因为must have done表示对过去事实的肯定推测
 
 
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