◎ 题干
It’s the second time that I _______ in Beijing. What great changes! It’s years since I ________ here last time.
A.went; had left B.had been; left
C.have been; left D.have; had left
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“It’s the second time that I _______ in Beijing. What great changes! It’s years since I ________ here last time.A.went; had leftB.had been; leftC.have been;…”主要考查了你对  【可数名词及其单复数】【动名词】【表语从句】【缩写与简写】  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。