I very appreciate your advice, I am not sure whethe I can apply K-3 from Guanzhou or not in the future, especially after I turned in My I-485 in USA. I have been went to the same school with my hu*****and, and we met each other that after 7 years. We married when I held my F-1 visa in USA. I can not understand the very reason that is so harder to apply it in USA than in Guangzhou?