请问如何把O3签证换成F1 学生签证?
-File I-539. Talk to the International Student Office and they will help you out.
麻烦吗?
-No.
大概需要多久?
-May take several months, case by case.
需要出美国吗?
-Not have to. You can either change O3 to F-1 within US by filing I-539 or go to China to get the F-1 visa to come back. Up to you.
谢谢