刚刚收到EAD卡，上面最后一行写着serves as I-512 advance parole，是不是意味着这个也就是我的返乡卡，我可以买机票回家了？
另外，随着卡寄来的纸上写着这个卡式combo card，说the combo card permits you to work in the united states and to travel outside the united states and return while your form I-485 is pending with USCIS.
但是那张纸的最后一行仍旧用红字写着“if you have received a combo card, please see important information on reverse before traveling outside the united states. Parole upon your return to the untied states is not guaranteed.”
combo card到底能不能充当返乡证啊？听起来，即使拿着这个combo card 回美国时的入境好像还是没有保证阿？这个combo card到底能不能充当返乡证啊？