◎ 题干
—Come on,Kitty.
—Oh, good heavens! Both my legs are nearly to give out. I_______ for hours like a dog.
A.have been walkingB.had walkedC.was walkingD.walked
◎ 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“—Come on,Kitty.—Oh, good heavens! Both my legs are nearly to give out. I_______ for hours like a dog.A.have been walkingB.had walkedC.was walkingD.walked…”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。