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When I knocked at the door, my mother ______.A、cookedB、was cookingC、cookBwhen
When I knocked at the door, my mother ______.A、cookedB、was cookingC、cookBwhen
游客
2025-07-04
21
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问题
When I knocked at the door, my mother ______.
选项
A、cooked
B、was cooking
C、cook
答案
B
解析
when引导的状语从句用一般过去时,主句用过去进行时表示“当…时,某人正在做某事”。
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