1. The window was broken last week. Это предложение и так в passive voice
2. Bread is usually bought in this shop by us
3. Mistakes are sometimes made by students. It’s inevitable.
4. This house was built by my grandfather many years ago
5. Many important experiments have been made by them in this laboratory
6. This new film will be shown on TV by them
7. Tennis was being played from four till five by the boys
8. This book was written by him in the 19th century
9. This play will be staged by the theatre at the beginning of next season
10. All necessary work will be done by us in the evening
11. Central Africa was explored by Livingstone in the 19th century
12. The way to the metro station was shown to us by her
13. The man was being looked by us with a great surprise
14. Their daughter is sent to rest at the seaside every year by parents
15. The whole text has been translated by the students
