----- Nội dung dịch tự động từ ảnh ----- V. Choose the part that NEEDS CORRECTION in the following question. 19. Bicycle is a cheap and efficient mean of transport. C. mean B. a A. Bicycle 20. Be careful when you are on roads. You must drive fast or carelessly! A. Be B. on roads C. must D. of B. in the cinema 22. In 2050, the world's population will grown to 9 billion. A. In B. world's C. grown 6 DR D. carelessly 21. You should to obey the rules in the cinema by turning off your mobile phone. A. to obey D. off C. turning D. to
