【英语】改句子 People have kept dogs for milllons of years.

【英语】改句子 People have kept dogs for milllons of years. 组句 have ,millions ,dogs ,people ,for ,kept ,of ,years . people have kept dogs for millions of years 为什么用have kept People have had pet dogs for thousands of years. 翻译 People＿＿dogs for millions of years.A.kept B.k people have kept dogd for millions of years?对for millions of 一个英语句子不懂,Many guide dogs that have worked for years know all Dogs have been man's good friends for t______ of years.Many Dogs have been man`s friends for t＿ of years.Many stories to for hundreds of years ,st.bernard dogs have saved the lives Dogs have been man's good firend for t_____ of years. 根据短文意思写单词Dogs have been man"s best friend for t__ of years ,