正准备给父母办绿卡， 他们结婚的时候就按照传统办了喜酒，但是没有登记。也就是没有婚姻证书。 后来他们在2010年左右补办了。
我总感觉补办的证书不能用，用了反而说不清楚， 因为补办的证书上的结婚日期就是登记日期，远远晚于我的出生日期。
请问有经验的网友们， 关于父母的婚姻问题， 该怎么办？国内可以办事实婚姻公证吗？
-Two choices:
1. 叫国内当地所派或民政部门出出个证明，然后去公证处作个新的婚姻公证，把你父母的结婚日期改在你的生日以前。
2. Provide the evidences that your father raised you until 18 years old or until your college graduation, such as the copy of the old 户口本 which contained your parents' names and your name before you turned 18 years old or until your patrents' marrage date on the marriage certificate, your father payments for your tuitions from elemetary school to college (you can ask your teachers to provide the letters to prove it) (or to until your patrents' marrage date on the marriage certificate), support letters from your relatives, or/and 街道委员会 （or 居委会, 村委会), etc., to verify you was living together with your parens during your childhood.
