1. This flower is watered (by my father) every morning.

2. Fiona is invited to John’s birthday party.

3. The dinner is prepared (by her mother) in the kitchen.

4. Our teeth are cleaned twice a day.

5. The English grammar is explained (by our teacher).

6. The accident is caused in this city (by some drunk drivers).

7. Tom’s parents are visited (by him) next month.

8. The secretary is phoned (by the manager).

9. This beautiful dress is bought by Mary.

10. These old pictures are hung in the living room.

11. This factory is built (by the German).

12. This house and these cars are painted for Christmas Day by the Greens.

13. The cats are fed (by Ann) before she goes to the cinema.

14. The pollution problems are discussed (by the students).

15. The most valuable painting in the national museum is stolen (by the thieves).

EXERCISE 1: Change the sentences into passive voice

1. This flower is watered by my father every morning.

2. Fiona is invited by John to his birthday party.

3. The dinner is prepared by her mother in the kitchen.

4. Our teeth is cleaned twice a day.

5. The English grammar is explained by our teachers.

6. The accident is caused by some drunk drivers in this city.

7. His parents are visited by Tom next month.

8. The secretary is phoned by the manager.

9. The beautiful dress is bought by Mary.

10. These old pictures are hung.

11. This factory is built by the German.

12. This house and these cars are painted by the Greens for Christmas Day.

13. The cats are fed by Ann before she goes to the cinema.

14. The pollution problems is discussed by the students.

15. The most valuable painting is stole by the thieves in the national museum.