Question

- 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

Answer 1

A

試題分析：句意：——我們城市的空氣質量正在變得越來越糟糕�！�—是的。這些日子的PM2.5指數嚇人。我們必須采取措施減少空氣污染。A. reduce 減少；     B. remove 移動；    C. collect收集；  D. gather聚集；根據Air quality in our city is becoming worse and worse.可知空氣質量越來越差，因此要減少空氣污染。故選A。