◎ 题干
My uncle ________ a worker, but now he _______in an office.
A.is, wasB.used to, is working
C.use to be, worksD.used to be, works
◎ 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“My uncle ________ a worker, but now he _______in an office.A.is, wasB.used to, is workingC.use to be, worksD.used to be, works…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。