我老婆和她小孩（9岁）两年的临时绿卡即将到期，准备为她们填写I751。是不是只要填写I751第5部分的内容，小孩就自动可以跟随母亲转成正式绿卡？需要另外交费吗？谢谢！
-If your wife and her child got their conditional green card at the same time, just put the child's name in the Part 5, and not need to file another I-751 for the child independently, and only pay one I-751 filing fee of $505 in this case, but both your wife and her child need to pay the biometric fee of $85, respectively. So, the total fee of your wife and the child are: 505 + 85 + 85 = $675.
But if the child got the conditional green card after the mother's, then the child needs to file another I-751 separately and pay the fee of $505 + 85.
