◎ 题干
While Helen _____ along the river after supper, she ____ a wallet lying on the roadside.
A. was walking; was finding            B. walked; found
B. walked; was finding                 D. was walking; found
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“ While Helen _____ along the river after supper, she ____ a wallet lying on the roadside.A. was walking; was finding B. walked; foundB. walked; was findin…”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。