The most serious problem we are facing now is how to ______ all the pollution
A.get rid of
B.get on with
C.get through with
D.get down to
网友回答
A解析考查短语辨析。get rid of 摆脱，除去，get on with 与某人相处，get through with 通过，get down to 着手做某事，句意：我们现在面临的最严重的问题就是如何除去所有的污染。所以选A。