Living in a city has a (55) …………… of drawbacks. Firstly, there aremany problems of traffic jams and traffic accidents. The increase (56) ……………… population and the increasing number of vehicles have caused many accidents to happen every day. Secondly, air pollution negatively affects people’s health, and it also has a bad influence on the environment. More and more city dwellers (57) ………………… from coughing or breathing problems. Thirdly, the city is noisy, even at night. Noise (58) ……………… comes from the traffic and from construction sites. Buildings are always being knocked (59) ……………… and rebuilt. These factors contribute to making city life more difficult for its residents. 55. A. lots B. great deal C. number D. numerous 56. A. at B. in C. on D. of 57. A. suffer B. differ C. recover D. different 58. A. polluting B. polluted C. pollution D. pollute 59. A. up B. down C. on D. at