Cevap:
1. This hose was built by someone 200 years ago.
2. The cars are produced in this factory by them.
3. The window was broken by one of the students.
4. The breakfast is served everyday at eight o'clock by them.
5. Jim's bike was stolen by someone last night.
6. Cofee in Brazil is made by them.
7. Millions of planets were discovered by British astronomers.
8. Bars of chocolate are eaten everyday by people.
9. The tomb of Tutankhanum was discovered by Howard Carter.
10. A lot of pollution is caused by heavy traffic.
11. When the first mobile phone was used by someone?
Açıklama:
Cevaplardan Active ve Pasive farkı anlaşılabilir.