Every time I heard other students( )(talk)and laughing.I felt my heart break
问题描述：
Every time I heard other students( )(talk)and laughing.I felt my heart break
答
talking
hear sb / sth doing 表示听某物（某人）正在做某事,强调动作正在进行
hear sb / sth do表示听到某物（某人）做某事,强调动作已完成
此句子根据句子意思还有句子并列动词laughing的形式可判断要用进行时talking