it was years before i had seen her 和it wasyears since i had seen her是相等吗

It was three years before he came it was 7 years before they got married.翻译 it was thirty years until they were able to reunite 能代替 it was thirty years before they were吗 英语翻译It stood for one thousand hundred years before it was destroyed by an earthquake. it was 3 years before i had graduated from the university 对吗?也就是it is 过去式 before 过去完成时 请问it be…before…的句型用法…比如说it was 3 years before he … it was 和it is +before这两个的时态要注意吗it is 3 years before they.和it was 3 years before they.从句主句后面的时态怎么用 It took them nearly 3 years ( before )the new stadium was completed.为什么不用until It was a long time ____ we had had a wonderful time together seval years before it was ten years _Miss lin returned to jinanA that B before C when D since it was many years before american women were given the rights to vote翻译下, It was many years before american women were given the rights to vote翻译, it was i met miss white in hangzhou A:three years before B:three years ago that C:three years whenD:three years ago since it was years before i had seen her 和it wasyears since i had seen her是相等吗 it was three years i met miss white in hangzhou A:three years before B:three years ago thatC:three years when D:three years ago sinceit was i met miss white in hangzhou 英语语法：It was quite a few years before I quited the job.而此句before若改为since 则was要改成is ,为什么? Six years has passed before I realize it.It was 12 o'clock before I realized it.这两句的区别是什Six years has passed before I realize it.It was 12 o'clock before I realized it.第一句I realize it第二句I realized it.一个用现在时,一 It was two years later that ...与It was two years before...的区别是?两句那句是强调句式?为何会有这样的区别?before与later的用法有何不同?