Have you ever volunteered your time求翻译,急在填写赴美的表格中出现的

英语翻译Have you ever heard of a famous charity called Operation Smile?We hope we can help you understand how we are trying to help children all over the world.Operation Smile was started by a doctor and his wife.In 1982,together with some volunt 造句：Have you ever. Have you ever heard Have you ever have you ever与have you ever been的区别 you have ever said before和you have ever said 英语造句have you ever “Have You Ever Seen Me? Have you ever seen snow? have you ever.是什么句型 have you ever fed them? Have you ever had these? Have you ever been employed? Where have you ever been? have you ever [ ] [drink]coke? Have you ever ( ) [study] abroad? have you ever move house have you ever have Italian food?