2014年5月申請父母的綠卡,2015年4月收到通知“We registered your permanent resident status and mailed you a Welcome Notice.”和“We ordered your new card.”,但是過了3天後又收到通知“We reopened your Form I-485, Application to Register Permanent Residence or to Adjust Status, and are reconsidering our earlier decision.”,到現在一直沒有消息,請問8老師等前輩請問我們除了等待還能做些什麽?