填空We were walking down the street when we heard a kid____(cry)for_英语解答

填空We were walking down the street when we heard a kid____(cry)for help?求教.
填 cry 还是crying为什么?谢谢

人气：406 ℃　时间：2019-10-18 13:58:39

解答

填crying, 表示听到小孩正在求救.
如果提案cry,则表示听到小孩求救过了,已经不在呼救了.