为什么 what nationality are you = what's your nationality

为什么 what nationality are you = what's your nationality what nationality are you?=what's your nationality?那么 what nationality are you?和 what's your nationality?为什么还可以倒过来 关于what's your nationality和what nationality is you. 例：What nationality are you?可以说成What's your nationality? What nationality are you? What nationality are you 可以说成 What are you nationality what nationality are you中 what nationality are you和what’s your job都是''你''的为什么一个用are一个用 What nationality are you?or What nationality is he? What's your job可以说成 What job are 如果不行的话,那为什么What nationality What nationality are you?与What is your nationality?的区别