7. Had a package delivered by a special messenger before you.

8. The concerts are usually held at the university by the students.

9. The problem is being studied carefully by the scientists.

10. Two children were found in the forest by the police.

11. I was introduced to Dr Felix last year.

12. Large areas of forest are being destroyed every day.

13. The land next to our house has been bought.

14. Have you been shown what to do?

15. I wasn't told that George was ill.

16. A lion was killed by Sam last week.

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

18. That box hasn't been opened for the past hundred years.

19. Are these letters going to be mailed soon?

20. Our exercises at home are corrected by the teacher.

21. Ali's mother was worried by his absence.

22. Several new schools are being built in our town.

23. Great progess has been made in industry, science and medicine.

24. The report should have been finished yesterday.

25. What were questions set by the examiner?

26. Her ticket was showed to the airline agent,

27. His friend is lent his new shoes.

28. Some new roads are being built in this city this year.