A. but B. though 12. Traffic accidents can be prevented if people A. remember B. obey C. go after the last bus. 13. Hurry up, or we'll A. lose B. avoid C. miss 14. Does your bike ever A. break 15. Give a A. sign 16. Linda used to B. turn B. take before you turn left or right. C. sound B. does 19. Bus is the main public A. travel A. did 17. My father A. catches B. drives 18. You should look right and left when you go A. down B. across C. up in Viet Nam. C. because B. tricycle 20. The play was so boring A. Therefore B. Despite D. drop down on the way to school? C. do D. turn D. signal morning exercise when she got up early. C. doing D. do the bus to work every day, but I cycle. C. goes 9 Cry Tat Hom her house. D. or the rules D. take care of C. However his homework late in the evening. D. runs the road. D. along D. vehicle C. transport An saw it from beginning to end. D. Although D. did