sth has changed 还是 sth has been changed

sth has changed 还是 sth has been changed everybody everthing has been changed 为什么his life has been changed不对? IM Has Been Changed,Pls Check it? Has always been freewheeling has not changed是什么意思? has been doing sth+介词 My life has been changed 和how my life has changed 有什么区别? Nothing has changed 歌词 Everything Has Changed链接 Everything Has Changed 歌词 was changed和has changed ; have been和had been ； have done 和 h your graphic card has been changed please use au