the days 后面什么时候接when 接 which

the days 后面什么时候接when 接 which the days 什么时候后面加 that 什么时候加 when? when后面为什么加过去式,如Ill never forget the days shen we studied together When summer comes,the days get_. I miss the days when you When will you finish reading the book?For_____two days.A.another B.other C,the other D ,others搞不清这4种什么时候用,选哪个? I will never forget the days that I spent with my friends in the countryside.为什么要用that,我可以用when把the days 看做时间状语用来修饰后面的句子啊! gone forever----the chinese were looked down upon as weak people.答案是are the days when1)为什么要倒装?2）为什么不是were the days when?后面不是过去式么? There are times是不是后面常接when引导的句子?什么时候接when引导的句子呢？ gone are the days 后面接从句的话用哪个连词? all后面接名词的时候,什么时候要加the什么时候不用? When are the days long and the nights short 介词of后面什么时候加the,什么时候不用加the Around the World in 80 Days 什么时候写的 当我看到你的照片时,是不是when后面接一般式see.什么时候可以是when后面用saw? Have you seen the film?Yes,i have.When did you see the film?为什么这里用when did不用when have?when和where后面什么时候可以跟完成时 分析 Gone are the days when the days when we used the foreign oil.Gone are the days when the days when we used the foreign oil.问：分析一下句子 He always comes on the days when I am busy这句中on the days怎样理解