since it coming into being还是since it came into being?

since it coming into being还是since it came into being? since it came into being,the computer has almost been synony Since the Great Wall came into being,it has often been added since the Internet came into being people's lives at home ha E-books （ ）very popular since they came into being A become It came into being ____ 1796.这道题的空应该填 AT 还是 IN 用came.into.being造句 英语翻译Beijing Opera is our nation opera.It came into being aft 英语翻译Beijing Opera is our national opera .it came into being 英语翻译Television first came into being in the 1930's,but it di It has been ten years since the Labour Party came into _____ the book has been translated into thirty languages since it