◎ 题干
He _____ along the seaside _____ a tsunami came.
[     ]
A. walked; when
B. is walking; as
C. was walking; when
D. was walking; while
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“He _____along the seaside _____a tsunami came. [ ]A. walked; when B. is walking; as C. was walking; whenD. was walking; while …”主要考查了你对  【并列连词】【过去进行时】  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。