Ответ:

2. The post is delivered by them every day.

3. Seeds are eaten by birds.

4. Three houses were destroyed by a storm in the neighbourhood.

5. The school was built by them in 1956.

6. Is dinner cooked by her every night?

7. Were the dishes washed by Nicky?

8. Johnny's bag wasn't stolen by Ben.

9. The missing painting was found by them.

10. The dog is taken for a walk by Fiona every day.