Ответ:

1. Joana's birthday has been celebrated by everybody.

2. The classroom has been cleaned by them.

3. The bill has been paid by Kerrie.

4. A hamburger has been eaten by me.

5. The present has been opened by me.

6. The book hasn't been read by them.

7. The parcel hasn't been sent by you.

8. The kitchen has been cleaned by Linda.

9. The plants has been watered by our mother.

10. The report has been finished by the headmaster.

Объяснение: