what a pity 与 what's a pity的区别是?

what a pity 与 what's a pity的区别是? what a pity 和 it is a pity 的区别 what's a pity和it's a pity what a pity的用法 what a pity! what a pity!的意思是什么 What a pity什么时候用 what a shame 与 what a pity有什么区别?谢谢 - that you fail to come A How pity B what pity C what a pity what a pity 为什么 用a?难道pity是可数名词? what a pity 与 I‘m sorry to hear that What a pity is not you