问对方来自哪里，可以这样说：
Where are you from?
Where do you come from?
What's your nationality?
Are you Australian(澳大利亚人)?
情景对话：
在欢迎会上，Peter正在和他的新同伴Pam谈话。
Peter: Your English(英语) is good!
Pam: Thank you.
Peter: Where do you come from? Are you British(英国人) ?
Pam: No.I come from Australia.I'm Australian.
