What on earth has happened to make you so upset?

What on earth has happened to make you so upset? what on earth? WHAT ON EARTH怎么样 what on the earth? 英语翻译What on earth. What on earth is rap? what is happiness on earth? what on earth are you? what are there on earth 到底发生了什么 what the hell has happened?what on earth has happened?这两句话都对吗还有别的说法吗 What is the biggest animal on earth? what on earth is it anyway What on earth do you need? 翻译what on earth was it about what are the smallest birds on earth what on earth happened?和what happened on earth?哪个对? 是What on earth are they looking at?还是What on earth they are looking at? 1、We live _____.What ______ are we doing with it?A、 on earth,on earch B、on the earth,on the earthC、on earth,on the earth D、on the earth,on earth