pjiang,
Thanks for answering my question in my original post.
我的H-1B延期是今年一月递交的，申请时附上当时号码为A的I-94复印件，其后出过国，入境时用AP获得新I-94号码B。我的H-1B延期申请六月初才批准，批准的上有新的I-94，号码还是A。
我理解批件上的I-94是我的最新I-94，但是它还是旧的号码A，我在出境时已将号码A的I-94上交了。请问这样会有问题吗？
谢谢！
My follow up question:
My lawyer suggested that "I see that you reentered the US using your Advance Parole (AP) and were issued a new I-94 that indicates that you have been paroled into the United States. The next time you depart the US, you should surrender this card. If you will be returning to the US with the AP, you should not surrender the tear-off I-94 card found at the bottom of your H-1B approval notice. If, however, you plan on applying for the H-1B visa while you are abroad, you should surrender both I-94 cards."
My question is that I will probably use AP to return to the US in the future. If I surrender the AP I-94 as suggested by my lawyer, what would be the meaningful I-94 to state my status when I return - the new AP I-94 or the H-1B I-94?
Thanks,