Помогите перевести предложения в Passive1)You can*t feed a cat on dog

Помогите перевести предложения в Passive
1)You can*t feed a cat on dog food.
2)By the time we got on the train somebody had taken the last seat.
3)Do they speak Italian in Switzerland?
4)They are not re-building the High Street until the end of the year.
5)Was anybody looking after the baby when he fell off the chair?
6)Has anybody opend this bottle of mineral water?
7)Somebody will pick you up from home and take you to the match.
8)Mary had taken the books back to the library.