◎ 题干
—Jim,have you finished reading Harry Potter and Half-Blood Prince?
—No.I______ my father on the farm all day yesterday.
A.would helpB.had helped
C.was helping D.have been helping
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Jim,have you finished reading Harry Potter and Half-Blood Prince?—No.I______ my father on the farm all day yesterday.A.would helpB.had helpedC.was helping D…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。