that boy is skating.【复数】david plays the piano in the music room.【改成现在进行时】

分类: 作业答案 • 2021-12-28 17:31:48

问题描述：

答

that boy is skating.
Those boys are skating.
【复数】
david plays the piano in the music room.
david is playing the piano in the music room.
【改成现在进行时】