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    精英家教网 > 高中英语 > 题目详情
    ---- Why does the river smell terrible?
    ---- Because large quantities of water______．
    A．have been pollutedB．has pollutedC．has been pollutedD．have polluted
    A              
                 
    试题分析： 考查动词的时态与语态。句意 为什么这条河流的味道那么难闻？因为大量的水被污染掉了。Large quantities of +名词 做主语是谓语动词用复数形式，水与污染之间是被动关系，结合以上两点，故选A项。         
    考点 : 考查动词的时态与语态
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