原文：Last week Mrs.Mills went to London.She does n原文：Last week Mrs.Mills went to London.She does not know London very well.请问为什么does不用过去式did?

分类: 作业答案 • 2021-12-20 03:38:23

问题描述：

原文：Last week Mrs.Mills went to London.She does n
原文：
Last week Mrs.Mills went to London.She does not know London very well.
请问为什么does不用过去式did?

答