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英语 小学 · 四年级 沪教版 · 四年级上册 单选题 ★★☆☆☆ 编号 #9554
My parents ___ the classroom every day last week.
A. were cleaning
B. cleaned
C. would clean
D. had cleaned
章节：动词的时态 · 知识点：一般过去时 · 标签：时态,一般过去时,语法
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