What happen...What's the matter ...What's wrong .的用法～后面+什么?He has learnt a lot______his teacher?a,about b,form c,by d,with求show off ,show up ,show around,show in 四个词组的意思?

What's happen? what's happen what's going to happen What happen what happen swwety,what 's happen to you? What's Going To Happen 歌词 What's happen?是词组吗 happen用法what's happened to you What's happened toyou what happen to you what's happened to you What happen还是What is happen? 请问：happen的用法.eg:what happened,what's happen的区别 what's happen的S怎样理解这样表示对吗 what will happen? What happen to What will happen? what will happen then what will happen next? What happen is incorrect?