Why we need air ticket and boarding card as evidence,

万年绿,

Thanks for the two articles, I just submitted the I-485.
I haven't got the point. I can not understand that 机票和登记牌就是离境的铁证.

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

所有跟帖： 

• 试答 -万年绿- ♂ (359 bytes) () 08/14/2007 postreply 18:51:09

• Thanks, a great help -wwwwwwww- ♀ (0 bytes) () 08/15/2007 postreply 00:13:50

• 应该拿到I-485 receipt才能回国吧,要不然申请无效! -小臭蛋- ♀ (274 bytes) () 08/17/2007 postreply 08:31:49