I20s to I485

来源: 于 2011-10-17 10:21:42 [旧帖] [给我悄悄话] 本文已被阅读：次

How critical are the I20s to I485? I can't find all of them. Especially, I didn't find the one for my dependends first came in the States. Thank you very much for teacher 8's quick reply to the question I posted yesterday!