Which I94 should I hand in?

Thanks for any input. I have three I94 cards in my hand with same number, one for J2, others for H1B. I am leaving US soon, I wonder which one I should hand in at the port of exit, and when I am back with advance parole, I will be issued a new I94 with a different number, does it affect my GC petition? Thanks a lot for any advice and suggestion.

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• You should use the newest one. -假博士- ♀ (0 bytes) () 01/05/2004 postreply 11:01:00

• Thanks, but our ISO said -Luck2U- ♀ (128 bytes) () 01/05/2004 postreply 14:11:00

• you should only have one -hgd- ♀ (248 bytes) () 01/05/2004 postreply 14:28:00

• I do have three in my hand -Luck2U- ♀ (101 bytes) () 01/06/2004 postreply 08:14:00