初二英语改被动语态1Which sweatre does Jack like better ,the blue one

1.Which sweater is liked better by Jack,the blue one or the black one?
When I got home ,my dog had already been fed by my mother.
2.I was stopped from playing football in the street by my father.
3.They weren't told the result( by me) until it was midnight.
4.No matter what the weather is lije,serious suifers can be found (by you ) out riding the waves.
5.When the parents arrived there,their daughters were seen dancing in the police station.
6.I am made to play the piano every day by Mum.
7.The old are taken good care of by the Chinese government.