我最近在给父母申请绿卡，他们本来一月到期，后延期半年，已经拿到延期通知，可是网上I-94的日期没有更新，还是之前一月那个，不知道需不需要打电话询问移民局更改呢？
-No. These are two different I-94. When USCIS approved your B-2 extension application, then should have issued a new I-94 with your B-2 approal notice with a new I-94 expiration date. So, that new I-94 has replaced the old I-94 which was in the online system.
还是在绿卡申请的时候附上延期通知就可以了，谢谢！
-Proivde the copy of the old I-94 (print it out online), and the new B-2 approval notice with the I-94 for I-485 filing.
