将下一句子改为被动语态（九年级英语）,能改几句就改几句,高手来1.Who bought the book?2.We saw him sitting there without doing anything3.I will ring Tom up4.Someone has taken the stranger to another hospital5.Did he do his homework last night?6.The students listened to the teacher carefully7.He asked to play the piano last Sunday

我认为楼上第七句翻译有误
我补充下
7的翻译为 他上星期天被要求去弹钢琴。
应该这样写
The piano is played by him who is asked last Sunday.
who后面的is可以省略 其他的我和楼上的一样

1By whom is the book bought?
2He was seen by us sitting there without doing anything.
3Tom will be rung up by me.
4The strange has been taken to another hospital by someone.
5Was his homework done by him last night?
6The teacher was listened by the students carefully.
7The piano was asked to play by him last Sundy.

1.Who was the book brought by?
2.He was seen sitting there without doing anything.
3.Tom will be rung up by me.
4.The stranger has been taken to another hospital by someone.
5.Was his homework done last night?
6.The teacher was listened to carefully by the students.

1,whom was the book bought?
2,He was seen sitting there without doing anything
3,Tom will be rung by me
4,The stranger has been taken by someone to another hospital
5,Was his homework did last night?
6,The teacher was listened to by the students carefully
最后一句好像少了什么吧？

各位不要误人子弟第七句是 He was asked to play the piano last sunday其余都对了 楼主相信我1By whom is the book bought?（who is the book bought by?） 2He was seen by us sitting there without doing anythi...