My sister could cook when she was ten years old.(就划线部分提问)
问题描述：
My sister could cook when she was ten years old.(就划线部分提问)
答
When could your sister cook ? ( 划线是：when she was ten years old )
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答
线在哪呢？
答
没看到线,可能答案是：when did your sister can cook?也可能是what could your sister do when she was ten years old?着情选择合适答案..