帮忙把以下句子改成被动语态

题目

帮忙把以下句子改成被动语态
1.They asked her to teach them an English song.
2.They gave me a new dress.
3.You must tell her the truth.
4.The students ask the teacher many questions in class.
5.Mrs Black has asked the children to play the game.
6.He offered me a new job.
7.We elected her monitor.
8.He has given me a lot of help.
9.He lent me the book yesterday.
10.has everyone ever asked you such a question before?
11.did you give the children enough sugar?
12.I allawed TOM to go to the cinema yesterday.
13.he is showing us how to operate the machine .
14.they made Jack head of the delegation.
15.I heard Mary sing the song at a party.

答案

1.She was asked to teach them an English son.
2.I was given a new dress.
3.She must be told the truth.
4.The teach was asked many questions by the students in class.
5.The children are asked by Mrs Black to play the game.
6.I was offered a new job.
7.Her monitor is elected by us.
8.I was given a lot of help by he.
9.I was lent the book by him yesterday.
10.Has such a question ever asked by anyone ever?
11.Were the children given enough sugar by you?
12.Tom was allowed by me to go the cinema yesterday.
13.We are being shown how to operate the machine by him.
14.Jack was made head of the delegation by them.
15.Mary was heard sung the song by me at a party.