It _____ three years since he _____ the computer这台电脑他已经买三年了

It's three years since we saw each other last time = We _____ _____ each other for three years It is three years since he died.(同义句） He has ____ _____ for three years. his grandpa has been dead for three years.改为同义句it _____ _____ there years ______his grandpa died It _____(be)more than three years since jim___(leave)here怎么填 it _____(be) three years since my borther went to Hainan.(适当形式填空） Jack joined the army in 2006.(改为同义句)It ____ _____ three years _____ jack joined the army. It _____ three years since he _____ the computer这台电脑他已经买三年了 The boy has learned English for about three years的同义句是什么It is about three years ______ the boy _____ to learn English要怎么改 It three years since I smoked.翻译 It was three years before he came 同义句替换John’s grandmother has been dead for 3 years.It's three years ____ John's grandmother _____. i'm three years _____ than my mother I _____ this school since three years ago. it was i met miss white in hangzhou A:three years before B:three years ago that C:three years whenD:three years ago since three years I have been here for three years.=It is three years ______I____here It take me three years to write the book 对three years 提问 It takes me three years to write the book.就three years 提问?怎么提问?