◎ 题干
The twins have studied in this school       .
A.two years agoB.since two years ago
C.for two yeas agoD.since two years
◎ 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“The twins have studied in this school . A.two years agoB.since two years ago C.for two yeas agoD.since two years…”主要考查了你对  【助动词】【介词短语】【固定搭配】【疑问词组】  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。