I have been here for three years.=It is three years ______I____here
问题描述:
I have been here for three years.=It is three years ______I____here
答
It is three years since I have been here.
答
I have been here for three years.=It is three years since I came here
答
I have been here for three years.=It is three years since I came here
It is +时间+since+从句 是万能公式
答
since came
答
I have been here for three years.=It is three years since I came here.
It is +时间+since从句,相当于现在完成时