1. They will install solar panels on the roof of our house next week.
=> solar panels will bw installed on the roof of our house next week.
2. The plumber will check the cracks on the water pipes in two days.
=> The cracks on the water pipes will be checked by the plumber in two days.
3. They won't show this film next friday.
=> This film will not be shown next friday.
4. People won't burn foossil fuels for energy in the future.
=> Fossil fuels will not be burned for energy in the future.
5. We will use biogas for cooking and heating next year.
=> Biogas will be use for cooking and heating next yeay.