We are using up our natural resources too quickly and at the sam

We are using up our natural resources too quickly and at the same time we are __________our environment with dangerous chemicals.
A、protecting
B、saving
C、polluting
D、fighting
【正确答案】：C
【题目解析】：考查动词辨析。句意为:“我们将很快耗尽自然资源，同时也正用有害化学物质污染我们的环境。”pollute“污染”符合句意。protect“保护”;save“拯救”;fight“战斗”。