our good life has just begun 为什么要用begun不begin?这句话的语法要点?

life has been good our good life has just begun 为什么要用begun不begin?这句话的语法要点? 翻译 Isinternet good for our life? 辩论赛：is Advertisement good for our life how has technology affected our life? 英语翻译Good NightIs all our life,then,but a dream The weather has a lot to do with our life Reading newspapers has become important in our d__ life. the internet has already become part of our life. Our life has become___happier than before（填四种） Our life has a limit,but knowledge is without limit our life has ____（改变） a lot Our life has c—— a lot首字母填空 英语翻译Students,teachers ,Good affternoon!学生,教师,下午好!As the whole world has its boundaries,limitsand freedom coexist in our life.I don’t expect complete freedom,which isimpossible.I simply have a dream that supports my life.由于 Our English teacher has a good ________(know) of London. our teacher has some good news( tell) you However,beyond just feeling good ,happiness also contributes to our life ,to our relationship . 把Reading good books is very good for our life.改为同意句