have you ever 什么 a tuxedo

have you ever 什么 a tuxedo have you ever bought a guitar before 什么 意思 Have you ever fallen out of a tree 什么意思? have you ever 和 do you ever 有什么区别? Did you ever...和Have you ever...有什么区别?什么时候用Did you ever...什么时候用Have you ever... I don't think you have ever heard of him A：have you B：haveen't you C：doyou D:dou't you Have you ever helped ____you didn't know?A.someoneB.anyone.Which one to choose? have you ever后面跟什么 Have you (ever)studied (with)a group? have you ever entered a competition Have you ever e______ a singing competition? Have you ever caught in a rush? Have you ever come_______such a difficult problem have you ever been with a have you ever caught a chicken have you ever been a lady-killer? Have you ever helpd someone you didn’t know?是什么意思 You have ever throw thing away ,haven't you 翻译