questions about f1 sponsorship

来源: 于 2003-10-08 07:50:00 [旧帖] [给我悄悄话] 本文已被阅读：次
I have a quetion here. I want to change f2 status to f1 and I have a sponspor in China. I wonder what qualifications my sponspor should have? What documents should he present to BCIS? Anyone knows? Thanks a lot.