九年级英语 | 完形填空阅读理解 【环保问题（空气污染）】
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简介
一：Fighting Air Pollution in Our Cities Air pollution has become a major concern in our cities, affecting the health of (1) _____ and the environment. The main sources of air pollution include industrial emissions, vehicle exhaust, and (2) _____. To tackle this issue, cities are adopting various measures such as promoting the use of (3) _____ vehicles, implementing stricter emission standards, and increasing green spaces. These efforts aim to reduce pollutants in the air and improve (4) _____ quality. However, more needs to be done as air pollution remains a (5) _____ challenge. （1）A. animals B. plants C. residents
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