I am still a Ph.D. Candidate student, my I-20 expires in about 2-3 yrs. I just started working full time a couple of months ago, so I got my H1b now. If I were to go back to China, should I use my H1b visa? What about my I-20 and F1 visa? How possibly can I use it in the future? Do i need to contact the international office in my school for a new copy of I-20?
Thanks!