21. The house which was painted white, is mine.

22. The lamp which is 5 dollars, is made in China.

23. The girls who are playing chess, are Nga and Hoa.

24. We're driving on the road which was built in 2000.

25. The vegetables which are sold in this shop, are grown without chemicals.

26. The energy which is radiated by the sun, can boil water and run machines.

27. We exported flowers, which are grown in Dalat, to foreign countries.

28. Cars, which are made in Korea, are cheap and beautiful.

29. "The Old Man and the Sea", which was written by Hemingway, is very interesting.

30. Penicillin, which has saved the lives of millions, was discovered by Dr. Fleming.

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11. English is spoken all over the world.
12. The roses are watered by Sue every day.
13. My living room is cleaned every day.
14. Would you mind if I carried your luggage?
15. Do you mind if I borrow your newspaper?
16. Do you mind turning down the music down.
17. Do you mind if I close the windows?
18. Would you mind explaining this sentence to me?
19. Would you mind getting me this book?
20. Do you mind if I turn on the TV?

21. The house which was painted white is mine.
22. The lamp which is made in China is five dollars.
23. The girls are Nga and Hoa who are playing chess.
24. We are driving on the road which was built in 2000. 
25. The vegetables which are grown without chemicals are sold in this shop.
26. The energy which can boil water and run machines is radiated by the sun.
27. Flowers which we exported to foreign countries are grown in Dalat.
28. Cars which are cheap and beautiful are made in Korea.
29. "The Old Man and the Sea", which is very interesting, was written by Hemingway.

30. Penicillin, which was discovered by Dr.Fleming, has saved the lives of millions.
31. Who saw the boy who swam in the pool two hours ago?
32. The man who is trying to stand on a ball is a clown.