I OFTEN HEAR HIM _ AN ENGLISH SONG ,AND YEATERDAY I HEARD HI

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/15 04:26:58

I OFTEN HEAR HIM _ AN ENGLISH SONG ,AND YEATERDAY I HEARD HIM _ IN THE NEXT ROOM.

第一个sing 表结果只是听他时常唱歌而已
第二个singing正在进行的状态昨天我听见他在隔壁正在唱歌