(单选题)

In fact, New York’s municipal water for more than a century ______ the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity.

A.is called

B.was called

C.are called

D.were called

参考答案：B

参考解析：

考查一般过去时。句意：事实上，一个多世纪以来，纽约的市政用水一直被称为自来水中的香槟，直到最近才被认为是世界上味道和纯度都最好的。根据题干中的until recently可知前面说的是之前的情况，结合时间状语for more than a century及句意可知，这里应该用一般过去时，且water为不可数名词，所以谓语需要用单数was。故选B。

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