1. They will install solar panels on the roof of our house next week.

→ Solar panels will be install on the roof of our house next week.(ko cần "by them" nha)

2. They will build a new school for poor children next month.

→ A new school will be built for poor children next month.

3. Will the plumber check cracks on the water pipes in two days?

→ Cracks on the water pipes will be checked by the plumber in two days. 4. They sell these chemicals everywhere in my hometown.

→ These chemicals are sold everywhere in my hometown.

5. They won't show the film on types of future energy sources next Friday.

→ The film won't be showed on types of future energy sources next Friday.
 

6. Some people will interview the new president on TV.

→ The new president will be interviewed on TV.

7. They will destroy the old thermal power plant at the end of this year.

→ The old thermal power plant will be destroyed at the end of this year.

8. They will widen the road to our village next year.

→ The road will be widened to our village next year.

9. We will be using biogas for cooking and heating at this time next month.

→ Biogas will be being used for cooking and heating at this time next month.

10. They got the first prize at the competition.

→ The first prize was got at the competition.