◎ 题干
—I joined the League _____ May, 2008. What about you?  
—I've been a League member _____ three years.
[     ]
A. in; for
B. on; in
C. on; for
D. in; since
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I joined the League ________ May, 2009. What about you? —I've been a League member _______ three years. [ ]A. in; for B. on; in C. on; for D. in; si…”主要考查了你对  【介词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。