◎ 题干
— ________ did your uncle leave his home town?.
— Let me see. He _______ for nearly twenty years.
A.When; has leftB.When; has been away
C.How long; has leftD.How long; has been away
◎ 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“ — ________ did your uncle leave his home town?.— Let me see. He _______ for nearly twenty years.A.When; has leftB.When; has been awayC.How long; has left…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。