Английский язык помогите решить пожалуйста

1-New hospitals are not being built in the provinces now.
2-Will her new novel be published next year?
3-The new petrol station will have been completed by winter.
4-Jimmy has just been arrested on suspicion of murder by the police.
5-The gas was cut because the bill hadn't been paid by Mr. and Mrs. Green.
6- A new hotel will be opened next week.
7-Important matters are discussed by our managers every Tuesday.
8-The plant was closed by the government last year.

1. They are now building new hospitals in the provinces. New hospitals in the provinces are being built by them now.
2. Will they publish her new novel next year? Will her new novel be published by them next year?
3. They will have completed the new petrol station by winter. The new petrol station will have been completed by them by winter.
4. The police have just arrested Jimmy on suspicion of murder. Jimmy has just been arrested by the police on suspicion of murder.
5. They cut the gas off because Mr. and Mrs. Green hadn’t paid their bill. The gas was cut off because Mr. and Mrs. Green hadn't paid their bill.
6. They will open a new hotel next week. A new hotel will be opened by them next week.
7. Our managers discuss important matters every Tuesday. Important matters are discussed by our managers every Tuesday.
8. The government closed the plant last year. The plant was closed by the government last year.