Two years has _____ _____(流逝) before we knew it.

Two years has _____ _____(流逝) before we knew it. three years has passed before we knew it know为什么用过去时 It’s ten years _____ we met each other last time.A.before B. It will be two years before we meet again 翻译 It has rained _____ the day before yesterday Before we knew it 怎么翻译? Three years went by before I knew it. 翻译three years had pasted before I knew it I bought the bike two years ago.=_____ _____ two years _____ 单项选择1.---_____ has he had the dictionary?---For two years.A. 1.He _____ for two years. has she _____ the book before?