—It's a long time____I saw you last.

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—It's a long time____I saw you last.
—yes,and what a pity since it will be a long time____we see each other again.
since,before B.before;since C.until;after .D.after,until
正解：A
我知道A是对的,但是为什么不选D?我怎么感觉D也是对的呢?

这是需要理解记忆的【固定句型结构搭配】：
①It + 【is /has been】+ time + 【since 自从...起】+ sb /sth【did 】
【主句】常用【现在完成时】或【一般现在时】,【从句】用【一般过去时】；
②It + 【was /will be】+ time + 【before 多久之后】+ sb /sth【did/do 】
【主句】用【一般将来时】,【从句】用【一般现在时】；【主句】用【一般过去时】,【从句】用【过去时】；
③It + 【was】+ 具体钟点+ 【when当...时】+ sb /sth【did 】时间状语从句
④It + 【was】+ 【介词】+具体钟点+ 【that】+ sb /sth【did 】强调结构
⑤ sb 【did 】sth 【after sth did】
sb 【did sth】【 after doing sth/after sometime】
这是after 经常的句型搭配
提醒：我们学习英语,不可只跟据汉语意思,揣测它的用法,或认为可以这样那样用；而应该尽量接受、理解英语本来正确的用法和结构,因为它是外来语言,有其自身的规律和规范,更有其独特的语言背景和文化积淀、风俗习惯等.

—It's a long time____I saw you last. it's a long time since i last saw you It's a long time since i saw you last. ----It's a long time ( ) I saw you last. ---It’s a long time ______ I last saw you. It's a long time ____I last saw you.Yes,and it will be anoth It's a long time that saw you (we met) last time,you looks w ----It's a long time ( ) I saw you last.----Yes,and what a p it's a long time since i last saw you这句话有错误么 It's a long time since i saw you last 这句中的it是不是形式主语? It's been a long time since I last saw a film.还是It's a long How long( )you last saw her?A.was it when B.is it after C.is