电话里的常用语who's that?-it's Luck

各位大仙儿,在英语的电话用语中“who's this”,与“who's that”相等吗? 英语的电话用语能用who's it这个问句吗? 请问英语电话用语中的who's this 与 who's that 有什么区别? who's that?回答到底用什么it's that's she's 要准确的 在听电话中,who's that 中的's是不是is的缩写 Who's that?A It's Tom BThis is Tom 改正错误；Who‘s that It‘s a bird 英语里的电话里用社么么来介绍自己,是用That's...,还是别的啊 括号里的神马意思?1.Bad luck!(It's raining cats and dogs).We have to 问一下 英语who is it 用在电话里是礼貌用语吗拜托各位大神 who's that women? Who’s that