回复：近6年没回国了，父母也没申请探亲。怎么办？

I understand your feeling. I hadn't seen my parents for seven years, before I went back to China this March. I used my advanced parole to come back to USA. You can apply for the advanced parole when you submit your I-485. If you have advanced parole, you don't need to worry about visa problem. Good luck.