In fact, ______ one cause that leads to the problem.
A、
cattle is
B、
cattle are
C、
cattles are
D、
the cattles are
【正确答案】
B
【答案解析】
考查名词用法。cattle(牲畜，牛)为集合名词，尽管它不带复数词尾-s，却表示复数意义，若用作主语，谓语要用复数。故本题选B。
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