USCIS ref: submit a copy of any previously issued I-688B.
我初次申请时是765表，没有688B，我是 EMPLOYMENT BASE, 如何回复 ？
-I-688B = EAD. Just provide the copy of your old EAD for the RFE if you got any EAD before. If no, just reply to the RFE and explain that you have never had any EAD and then, provide a copy of your I-485 receipt.
