cars are responsible for a good part of air pollution in big

cars are responsible for a good part of air pollution in big People are worrying___the pollution of the air. A.in B.with 句子Driving cars results in air pollution.是否有错误? We are unaware of the air pollution in our daily life. 英语翻译People and the sources of air pollution are found in the Cars are an important part of life in the United States.With 英文阅读理解!Passage 1Cars are an important part of life in the Un Cars are an important part of life in the United States.(翻译） 英语阅读理解!Passage 1Cars are an important part of life in the Un 英语翻译Cars are an important part of life in the United States. 英文翻译Cars are an important part of life in the United States. 英语任务型阅读答案Cars are an important part of life in the United St