Change these sentences passive voice

Câu bị động thì hiện tại hoàn thành:

- Chủ động: S + have/has + Vpp + O

-> Bị động: S + have/ has + been + Vpp (+by + O)
1. A vase of flowers has been broken by the boy yesterday.

2. Math has been taught in this school for a long time

3. Mai has got her car repaired by her brother.

4. Has this book been bought at Nhan Van bookstore?

5. English hasn't been learnt for a long time.

6. Have a lot of special gifts been given to her?

or: Has she been given a lot of special gifts?

7. My handbag has been left on the bus this morning.

8. What time has Mr Green's lecture been given?

9. We have had our house painted.

10. Has a lot of stories been told very well by your daughter?

11. Has your mother's car been driven to her office.

12. Salary has just been got at the end of the month.

13. The manager has had the report prepared by his secretary

14. Little boys have been made to climb they chimneys to clean them

15. A gift has been sent to him on his birthday.

1.A vase of flowers has been broken by the boy yesterday 

2.Math at this school has been taught for a long time

3.Mai's brother has been gottento repair her car

4.Has this book at Nhan Van bookstore been bought?

5.English hasn't been learned for a long time

6.Have a lot of special presents beengiven by her friends?

7.My handbag has been left on the bus this morning.

8. What time has Mr Green's lecture been given?

9.Our house has been painted

10.Have a lot of stories been told very well by your daughter?

11. Has her car been driven to her office by her mother?

12. Salry has been just gotten at the end of the month

13.His secretary has been had prepare the report by the manager

14.Little boys climb the chimneys have been made to clean them

15. A gift has been sent to him on his birthday