1. The postman usually delivers letters by noon.
- Letters are usually delivered by the postman by noon.
2. They sent all the letters yesterday.
- The letters were sent by them yesterday.
3. Many people enjoy TV series.
- TV series is enjoyed by many people.
4. My neighbours found a small dog.
- A small dog was found by my neighbours.
5. They deliver the new printer last week.
- New printer was delivered by them last week.