it is 时间段 since造句

不一定,还可以用it was since +had done.如:It was years since I had seen her. 在那之前我已经有好久没有见到她了.

It is+时间段+since+时间点.可以说一个例句吗 It is three years since we last met.自从我们上次见面到现在已是3年时间了.

It's a long time since he studied Chinese. It is a long time since i saw my little dog.

1. It is some time(一段时间) + since引导的时间状语从句= It has been some time(一段时间) + since引导的时间状语从句 该固定句型意思是“自从以来已经多久时间了”.2. 其中要求since引导的从句必须采用一般过去时,而主句是一般现

一般过去时,表示一个始于过去的时间段, 主句要求用现在完成时i have known him ever since i was a child.我自孩提时代起就已经认识他了.【希望帮助到你,若有疑问,可以追问~~~祝你学习进步,更上一层楼!(*^__^*)】

正是以前

=it has been+时间段+since

从句用一般过去时,主句用现在完成时,例如 he has been in the army since he left school.

我觉得吧.第一句跟第二句都应该用met. 楼主你确定你这个题目没问题么?..第三题应该是has passed / became因为吧其实正确的句子应该是it has been a long time since we met last或者since our last meeting.

Since 前可以加完成时的呀