8. When is the guitar played by you

9. How many books were bought yesterday evening

10. A lot of old friends were invited to her wedding party

11. The appointment had to be arranged again

12. The floor was being cleaned when I came in

13. The key wasn't found anywhere

14. They used to be taught English by Miss White.

15. I wasn't helped to do my homework by anyone

16. By whom was this essay written

17. The letter was being read while she was cooking

18. The student was told not to make noise during the time

19. I used to be made to look after her

20. By the time i came home, the homework had been done by my sister

21. A house is going to be built opposite my school

22. He will be contacted as soon as possible

23. A supermarket near the stadium was decided to open