I am married with US citizen, and preparing for the application of GC, in form I-864,G-325a asking about "Alien Registration Number", I dont know if I have one, if so where can I find it? In form I-485, asking about "A# "from me and my husband, we dont know what kind of numbers they are? In form G-325a, asking about "file number A" at the first line, do I have it? In form I-765, asking about my "current immigration status", since my J1 status is expired, what should I fill with? Thanks all in advance!