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It’s said that ______ of the water aroun...

It’s said that ______ of the water around the world ______ polluted.

A. two third; is    B. two third; are    C. two thirds; is    D. two thirds; are

 

C 【解析】句意:据说世界上三分之二的水被污染了。two thirds是三分之二,分子用基数词,分母用序数词,分子大于一的时候,分母要加s,因此A和B两个选项分数的构成不对,先排除。这个分数修饰了后面的名词water,是不可数名词,故谓语动词用单数,选C。  
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