单选题This summer I visited&nbs

单选题 This summer I visited the farm set up by my uncle,_______he raised fifty_______.A.there; cattleB.where; head of cattleC.in which; head of cattlesD.where; cattle

B解析 考查定语从句和名词的用法。此句为非限制性定语从句，且从句中不缺主语和宾语，先行词为farm，所以应用引导词where；cattle为牛的总称,可用head of cattle，也可以直接用cattle, 但不可加s, 可排除A、D；,而C项中介词应为on, on the farm为固定短语。综上所述

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