-- The cars give off a great deal of waste gas in the streets.
--- Yes. But I’m sure something will be done to air pollution.
A. reduce
B. remove
C. drop
D. warn
网友回答
(答案→)A. reduce
B. remove
C. drop
D. warn
解析：词义辨析。 A.减少；B.移动 C.终止；下降 D.警告。根据题意，汽车在街上释放大量废气。——是的，但是我相信要采取某种措施来减少空气污染。故选A。