用 “It has been +一段时间+since”造句两个
用 “It has been +一段时间+since”造句两个
造句it has been +时间段+since从句
一个英语问题句型“It’s / It has been + 一段时间 + since + 时间状语从句”中什么时候用is
it has been since.用法
It's been +一段时间 + since +一般过去式
求英语大手解决困惑至于It is +一段时间+since…的句型与It has been +一段时间+since…意思相
It is/has been+since sb+did 怎么用?
it has been two day since we left our hometown为什么用has been
it has been some time+since是什么意思
it has since been rebuilt怎么翻译
It is/has been + since sb +
It has been years since I returned home,为什么since用,而不用when?分不