被动语态改写英语句子This song is heard ( )now.A singing B to sing C sang Ds_英语解答

被动语态改写英语句子
This song is heard ( )now.
A singing B to sing C sang Dsung
The students in Class 4 didn't sweep the floor last Friday.
Did he take an umbrella just now?
Did that factory make TV sets in 1999?
后三个句子改成被动语态

人气：487 ℃　时间：2020-03-21 23:34:32

解答

This song is heard ( )now.A singing现在听到这首歌正在被唱.The students in Class 4 didn't sweep the floor last Friday.改：the floor wasn't swept last friday by the students in class 4.Did he take an um...