I heard some children --(sing) a song just now .

问题描述:

I heard some children __(sing) a song just now .
1个回答 分类:英语 2014-11-14

问题解答:

我来补答
填singing
hear sb doing sth听到某人正在做某事
just now刚刚
刚刚我听到有孩子在唱歌
 
 
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