1. Would you mind if I sat here?

2. Do you mind if I use your computer?

3. Do you mind closing the window? 

4. Do you mind giving me some advice about this? 

5. Christmas songs were performed for people in town. 

6. A birthday party will be held by my sister next Sunday. 

7. English and French are spoken all over the world. 

8. The color was invented by Goldmark in 1950. 

9. The girl who is talking to Miss Lan is my classmate. 

10. Do you know the woman who is standing next to Tom?

11. The glass window which was broken last night has been repaired. 

12. My children enjoyed the cakes which were made from corn and milk. 

13. Nhi asked Nga if she knew My Son.

14. Nam asked Lan if she was studying English then.

15. Minh asked me if I could translate that sentence into Vietnamese.

16. The tourist man asked her if there was a post office near there.

17. This is a label-printing machine. 

18. It is a fire-making festival

19. Japan is a car-exporting country.

20. That is a buffalo-fighting contest.