那since咋读

那since咋读 since 书上说since不与瞬间动词连用,那it's 2 years since he left his hometown为什么对? since 1800,china had been a decadent nation__1800怎么读?eighteen zero zero?那since 1949怎么读？ It is 一段时间 since 后面可以现在完成时吗It is +一段时间 +since + 一般过去时It has been +一段时间 +since +一般过去时这两种是可以的,那 since 后面除了一般过去时,可以用现在完成时吗? since then 和 from then on 用法相同吗?如果不同那有什么区别? since和for后面接时间,那前面的时态是不是都用现在完成时? 如果since引导的从句是过去式,那主句用现完时,还是过完 the year that has passed since the downfall of apocalypse!什么意思那? not since last summer 那他的工资升了还是没升呀 Since I took you for grant 正确翻译是不是歌词哦？那首歌？ 英语翻译Several have since made pledges to include organic fabrics in there lines 其中since是什么作用 怎么放那呢 since ever 和 since then 有区别吗字面上意思是一样的一个是在那之后,一个是从那时起 现在完成时中since后加点动词,那since前的谓语动词有怎样的要求呢?用点动词还是延续性动词？ It ___ six years since I left school.空格填什么?It ___ six years since I left school.能填is,那has been 能不能填啊? 关于since 和 by 的时态since 是不是一定会跟完成时态的的句子?那by 是不是一定是过去完成时呢? as用在句首和since有什么区别since和as不都有因为的意思吗.而且都能在句首,那有什么区别? it‘s ages since i went there since后是看动词有无持续性还是只能用一般过去不好意思，什么叫“since前面的那句话的动词，只能用持续性的”