1. Many novels were written by Charles Dickens.
2. By whom was the ambulance called?
3. Three records has been already made by John Perry.
4. Heating will be installed in the building.
5. The beach is being cleaned by schoolchildren.
6. The burglar was caught by the policeman.
7. The bridge was being repaired by workers.
8. A party for our class is being planned by our teacher.
9. By whom was this book given to you.
10. The parcel will be delivered by a courier.