第1个回答 2010-12-04
1 That kind of car was produced ( by them ) in China.
2 It is used ( by us ) for cooking?
3 Where was the bridge built ( by you)?
4 I am told a story by mother every day.
A story is told to me by mother every day.
5 Has the letter been finished yet?
第2个回答 2010-12-04
That kind of car is produced by them in China.
Was it used for cooking by us?
Where was the bridge built by you?
A story was told to me by mother every day.
Has the letter been finished by you yet?
第3个回答 2010-12-04
把下列句子主动语态改为被动语态 You needn't do it now You must finishIt needen't be done by you. Your homework must be finished by you