it will be 3 years before she returns from Singapore 这是什么结构

it will be 3 years before she returns from Singapore 这是什么结构 what will she be like when she returns from her vacation? 翻译 英语翻译还有It will be three years before he graduated. It will be three years before we meet again. It will be two years before we meet again 翻译 it will be five years before we meet again xx she xx (be)to Singapore before?She travelled to Singapore It will be——before she gets well． 连词成句five years it meet again will be we before 英语翻译It will be 5 years before the project is finished 后面要不要用 It will be a long time before Frank comes back from abroad . She has been writing a novel and it will be finished before