It is almost five years ___ we saw each other last time.

It is almost five years ___ we saw each other last time. it is almost five years （）we saw each other last time It is almost five years____we saw each other last time. five years ___ ____since we saw each other last time It is almost five years______we saw each other last time 为什么 It's almost eight years__we saw each other last time It _(be)five years since we last saw each other. It's three years since we saw each other last time = We ____ It is three years ( ) we saw each other last year.括号中应填since (it is ） four years since we last saw each other.这句话括号里为什么不是 it's been six years since we last saw each other是个什么从句? ‘It's been six years since we last saw each other’怎么翻译?