9. All students not handing in their papers will fail in the exam.
10. I saw many houses destroyed by the storm.
11. The street leading to the school is very wide.
12. The system used here is very successful.
13. Mr.John, teaching my son, is my neighbor.
14. Trains leaving from this station take an hour to get to London.
15. The candidates sitting for the exam are all from Vietnam.
16. We are driving on the road built in 1980.
17. Customers complaining about the service should see the manager.
18. The city destroyed during the war has now been rebuilt.
19. My brother, meeting you yesterday, works for a big firm.
Chúc bạn học tốt ^_^