9. People should make television programs more interesting for children.

⇒ Television programs should be made more interesting for children.

10. I have the mechanic repair my car. 

⇒ I have my car is repaired by the mechanic.

11. We saw Dr. Benson leave his office at six o'clock this evening.

⇒ Dr. Benson was seen to leave his office at six o'clock this evening.

12. Scientists  began to carry out researches on AIDS in1980.

⇒ Researches on AIDS began to be carried out by scientists in 1980.

13. You must hand in your report before the end of this month.

⇒ Your report had to hand before the end of this month.

14. Someone has brought this child up very badly.

⇒ This child has been brought up very badly.

15. Did anyone ask any questions about me ?

⇒ Were any questions asked about me ?

16. Who sent the message ?

⇒ By whom the message was sent ?

17. Tom broke the chair and the teacher punished him severely.

⇒ The chair was broken by Tom and he was punished severely by the teacher.

18. People must not leave bicycles in the hall.

⇒ Bicycles mustn't be left in the hall.

19. Nobody has cleaned my shoes and brushed my suit.

⇒ My shoes haven't cleaned and my suit hasn't brushed.

20. They are widening all the main streets in this city.

⇒ All the main streets are being widened in this city.

21. Was this company pulling down the old theatre to build a new one ?

⇒ Was the old theatre being pulled down to build a new one by this company ?

22. Someone will serve lunch in a few minutes.

⇒ Lunch will be served in a few minutes.

23. I'm going to buy a computer tomorrow.

⇒ I'm going to be bought a computer tomorrow.

24. The librarian was arranging books of fiction on the shelves when we...

⇒ Books of fiction were being arranged on the shelves by the librarian when we..

25. Tom saw Mary singing in the room .

⇒ Mary was seen singing in the room by Tom.

26. They gave her a clock.

⇒ A clock was given to her.

27. The workers are building my new school now.

⇒ My new school is being built by the workers now.

28. We need to move the lawn .

⇒ The lawn needs to be moved / needs moving.

9. Television programs should be made more interesting for children.

10. I have my car repaired by the mechanic.

11. Dr.Benson was seen leaving his office at six o'clock this eveing.

12. Researches on AIDS were carried out by scientists in 1980.

13. Your report must be handed before the end of this month.

14. This child has been brought up very badly.

15. Were any questions asked about me? 

16. Was the message sent by whom?

17. The chair was broken by Tom and he was punished severely.

18. Bicycles must not be left in the hall.

19. My shoes hasn't been cleaned and my suit hasn't been brushed.

20. All the main streets in this city are being widened.

21. Was the old theatre being pulled down by this company to build a new one?

22. Lunch will be served in a few minutes.

23. A computer is going to be bought tomorrow.

24. Books of fiction was being arranged by the librarian on the shelves when we came.

25. Mary was seen singing in the room by Tom.

26. A clock was given to her.

27. My new school is being built by the workers now.

28. The lawn needs to be mowed.