speak,say,spell有什么区别!告急!快回答!

请问:Where is he from.和Where does he come from.有什么区别?快回答!告急! say、speak、tell、talk有什么区别? speak.talk.say有什么区别? say,tell,speak有什么区别? say和speak有什么区别, speak,say,talk有什么区别? say,tell,speak,talk有什么区别? 请问speak,talk,say他们有什么区别? talk、tell、speak、say在用法上有什么区别? say,speak,talk,tell,chat,inform有什么区别 say 和speak talk tell 什么区别 say speak的区别,