英语新概念第73课Last week Mrs.Mills went to London.she does not konw London very well,and she lost her way.我想问的是时态问题,为什么第一句用过去时而第二句这个do却用一般时而后句的lose又用过去时lost?看过

关于DO的过去时态用法新概念英语第一册第73课里：Last week Mrs.Mills went to London.She does not know London very well,这里这个DOES不是说是现在时么?这里应该用DID吧另外好像之前的课文有提到动词后面加 新概念英语第73课课文 英语作文 Last week 英语新概念第73课Last week Mrs.Mills went to London.she does not konw London very well,and she lost her way.我想问的是时态问题,为什么第一句用过去时而第二句这个do却用一般时而后句的lose又用过去时lost?看过 新概念二册中 第15页 第三题 ：Last week the writer went我是新来的 英语基础不好 新概念二册中 第15页 第三题 ：Last week the writer went to the theatre.He was ____the theatre.A:to B:at C:into D:on 是不是选择B 原 新概念英语一册121~122课.课课练题这就是我上周买的那本字典.This is the dictionary （ ）（ ）（ ）last week. Did you swim across the river last week?为什么不用现在完成时?上句出自新概念第一册90课原文Did you swim across the river last week?Yes,I swam across the river last week.What about Ron and Betty?They haven't swum across the river 新概念英语第一册第39课 英语作文 Last Week快, 新概念英语新概念英第一册47课怎么讲 新概念英语第一册141课课文概括Last week,my four-year-old daughter,Sally,was invited to a children's party.I decided to take her by train.Sally was very excited because she had never travelled on a train before.She sat near the window and 求 新概念英语二 第84课 精讲!要详细的语法精讲课文原材料：Busmen have decided to go on strike next week.The strike is due to begin on Tuesday.No one knows how long it will last.The busmen have stated that the strike will contin 新概念英语第71课课文 新概念英语第一册53课课文 新概念英语第一册121课课文 新概念英语2第49课 新概念英语2第22课课文 新概念英语第一册28课翻译