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1、模拟测试卷四作文范文According to the figures in the last ten years, the number of cars in our town has gone up by 20%. The cars have brought us much convenience, but serious air pollution, traffic jams and accidents are also caused by the cars. Even some types of cancer as well as global warming are related t
2、o air pollution.Therefore, we should give up using cars, and use public transport and our legs instead. Walking can save you (r) money, keep you fit, and help you live longer. Besides, it can also cut the risk of heart disease. In a word, we should take some actions to improve our living environment.
