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英语 高中 · 高一 译林版 · 必修第二册 单选题 ★★★★☆ 编号 #9867
My parents ___ in the park every morning when I saw him.
A. had run
B. are running
C. have run
D. were running
章节：动词的时态 · 知识点：过去进行时 · 标签：时态,过去进行时,语法
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