To

问题详情：

To ___________ air pollution, we should take the bus or subway instead of driving.

A. cut down  B. cut off         C. cut up    D. cut into

【回答】

A    cut down减少，cut off切断；中断；使死亡；剥夺继承权cut up切碎；抨击cut into 切成。

知识点：动词和动词短语

题型：选择题