Why we need air ticket and boarding card as evidence,

來源: 於 2007-08-14 14:57:04 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

萬年綠,

Thanks for the two articles, I just submitted the I-485.
I haven't got the point. I can not understand that 機票和登記牌就是離境的鐵證.

Why we need air ticket and boarding card,for what?
Thanks for your advice