问题
选择题
- Air quality in our city is becoming worse and worse.
- Yes. These days' PM2.5 readings are frightening. We must do something to _______ air pollution.
A．reduce
B．remove
C．collect
D．gather
答案
答案：A
题目分析：句意：——我们城市的空气质量正在变得越来越糟糕。——是的。这些日子的PM2.5指数吓人。我们必须采取措施减少空气污染。A. reduce 减少； B. remove 移动； C. collect收集； D. gather聚集；根据Air quality in our city is becoming worse and worse.可知空气质量越来越差，因此要减少空气污染。故选A。