----- Nội dung dịch tự động từ ảnh ----- 16. How long/it/you/go/school? 17. It / about 500 km / Nam Dinh / Nghe An. 18. My mother/use/ ride to work / the past. 19. five years ago/people here / not use / feel worried / pollution. 20. Which game/you/use/play/ when you / small? 21. How far / your school / the cinema? 22. It/about 1000 km / Hanoi / Ho Chi Minh City.