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1. Miss Hien Trang teaches history.

⇒ History is taught by Miss Hien Trang.

2. John will deliver the letter.

⇒ The letter will be delivered by John.

3. Bell invented the telephone.

⇒ The telephone was invented by Bell.

4. My brother took the photo.

⇒ The photo wastaken by my brother.

5. They will open the new hospital.

⇒ The new hospital will be opened (by them).

6. Mr Brown wrote the report yesterday.

⇒ The report was written by Mr.Brown yesterday.

7. They clean the streets every day.

⇒ The streets are cleaned (bythem) every day.

8. We paint our house every four years.

⇒ Our house is painted every four years.

9. They dry the glass pieces completely.

⇒ The glass pieces are dried completely.

10. They will plant trees and flowers in the school garden.

⇒ Trees and flowers will be planted in the school garden (by them).

11. Many people in the world speak English.

⇒ English is spoken in the world by many people.

12. I will repair your bicycle tomorrow afternoon.

⇒ Your bicycle will be repaired by me tomorrow afternoon.

13. Penicillin can cure many dangerous disease.

⇒ Many dangerous diseases can cured by penicillin.

14. Does your country export rice to Britain?

⇒ Is rice exported to Britain by your country?

15. The milkman brings bottles of milk to houses.

⇒ Bottles of milk are brought to houses by the milkman.

16. John will collect me at the airport.

⇒ I will be collected by John at the airport.

17. The manager must sign the cheque.

⇒ The cheque must be signed by the manager.

18. They kept me waiting for half an hour.

⇒ I was kept waiting for half an hour (by them).

19. We can’t wear jeans at work.

⇒ Jeans can't be worn at work.

20.  Will you invite her to your birthday party?

⇒ Will she be invited to your birthday party ?

1. History is taught by Miss Hien Trang.

2. The letter will be delivered by John.

3. The telephone was invented by Bell.

4. The photo was taken by my brother.

5. The new hospital will be opened.

6. The report was written by Mr Brown.

7. The streets are cleaned everyday.

8. Our house is painted every 4 years.

9. The glass pieces are completely dried.

10. Trees and flowers will be planted in the school garden.

11.English was spoken by many people in the world.

12. Your bicycle will be repaired tomorrow afternoon.

13. Many dangerous diseases can be cured by penicillin.

14. Is rice from your country exported to Britain? (không chắc chắn)

15. Bottles of milk are brought to houses by the milkman.

16. I will be collected at the airport by John.

17.The cheque must be signed by the manager.

18. I was kept waiting for half an hour.

19. Jeans can't be worn at work./ Jeans are not allowed to be worn at work.

20. Will she be invited to your birthday party?