while引导句子怎么判断Grandma was cooking breadfast while I was washing my face this morning.中的过去进行时was cooking 可不可以换过去时cooked 为什么?
2022-10-10 23:39:45 15次 反馈错误 加入收藏 正确率 : 100%
题目内容：
while引导句子怎么判断
Grandma was cooking breadfast while I was washing my face this morning.中的过去进行时was cooking 可不可以换过去时cooked 为什么?
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