改被动语态

问题描述:

改被动语态
1.My mother bought me a new coat last week.
2.The workers set up china's first television station in 1958.
3.The langlord made the farmhands work fou him day and night.
4.Who wrote the letters?
5.Whom did you take care of?
6.Did he laugh at that little boy?

A new coat was bought for me by my mother last week .
China's first television stationwas set up by the workers in 1958.
Farmhands were made work by The landlord day and night.
Who were the letters written by ?
Whom was taken care of by you ?
Was that little boy laughed at by him?