状语从句before比如：类似：it was a long time before we met again和完成时的：

状语从句before比如：类似：it was a long time before we met again和完成时的： it's a long time 空格 we met last .a:before; b:since; 为什么? A(It will) be a B(long) time C(before) we D(will meet)again It will be a long time __ we meet them again.为什么用before 而不用 "it was 2 years before they met again" Hao long will it be before we meet again next time?是么子意思、准确 It won not long before we ____meet again. it will not be long before we can meet again. It's almost 3 years ____ we met last time .A.until B.before It’s ten years _____ we met each other last time.A.before B. When we parted,we know it would be a long time before we mee I was very excited yesterday . it was a long time before I (