Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. There are more (23) _________ today, so people can travel to a lot of places. We can have chances (24) _________ visit famous tourist attractions or to go to schools or offices. However, there will be more danger on the road. Some drivers drink beer or alcohol, so they may cause accidents easily. In big cities, there is also (25) _________ pollution because of the smoke from transports. Therefore, people living there may have (26) _________ problems. Moreover, the traffic jam can cause people to feel annoyed. If we want to prevent these problems, we should use (27) _________ such as bus. 23. A. roads B. ways C. traffic D. lines 24. A. with B. to C. of D. in 25. A. airy B. water C. air D. noise 26. A. lung B. heart C. ear D. stomach 27. A. private B. motorbike C. cars D. public transport