---It’s a long time since I saw our junior English teacher.
it's a long time since i last saw you
It's a long time since i saw you last.
It's been a long time since I last saw a film.还是It's a long
It is a long time since I saw my sister .
It is a long time since i saw my sistter
it's a long time since i last saw you这句话有错误么
( )17.—It’s a long time since I saw my sister.—_________ her
It's a long time since i saw you last 这句中的it是不是形式主语?
----It's a long time ( ) I saw you last.
---It’s a long time ______ I last saw you.
It has been a long time since i saw you last time.
1.It's a long time since I left my hometown.A long time __ _