I sing a song改为过去完成时 ,再改为被过去完成时的被动语态,A song _____ by me

分类: 作业答案 • 2021-11-13 00:45:45

问题描述：

答

I had sung a song.
过去完成时的被动语态:A song 【 had been sung】by me.
不明白的再问哟,请及时采纳,多谢!