It was time to go home,but I found a boy crying in the corner为什么要_英语解答

It was time to go home,but I found a boy crying in the corner
为什么要用crying而不用过去式

人气：140 ℃　时间：2019-10-19 17:21:34

解答

find sb.doing sth.：发现某人正在做某事；碰上（撞上）某人做某事