Why are you unhappy today?

Why are you unhappy today? Dada,why are you unhappy .和Dada you should always keep a smile. “what's the matter with you why you are so unhappy? Why did you say that you are unhappy?A B C D 哪个错了Why did you say that you are unhappy?A Why B say C that D are You are unhappy,____ ____? idont know why you are.unhappy.acturelly.the same to me.ihave no methord to face the life next.翻译 Mathematics,for you are unhappy是什么意思? whether you are happy or unhappy是什么意思 you are unhappy,___ ___?的附加问句是什么?You are unhappy,are you?还是You are unhappy,aren't you?到底哪一个是正确的? WHY YOU ARE HERE? Why are you here? why are you so why are you so why are you so why are you so Why are you angry? Why are you sad? why you are cleversss