问题补充:
单选题Weshouldthinkofwaystostopthewastefromthefactory_____ourlivingenvironment.A.being pollutedB.pollutingC.from being pollutedD.Polluted
答案:
B解析根据“废物”与“环境”的关系,“废物”污染“环境”,为主动发出的动作.
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