Go to US official site: www.uscis.gov

来源: 粮油 于 2009-07-06 13:33:33 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (180 bytes)

Then, click "Services & Benefits"
Then, click "Visit the U.S."
Then, click "How do I extend my stay?"

All the detailed information are available. Read carefully.

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