回複：your questions

I am the major applicant, my family are derivatives. Now all (my family and I) are at the stage of 485 pending. Once one person 140 is approved, all family members can apply for green card (I485). Sometime, one memeber may get early appoval than others. I means all of your family members are waiting? Since the processing date is beyond the case. Did you contact USCIS for the reason? I did, no convencing answers.
Thanks for exchanging information.