在线等,急问J-1 DS 3035 表的填写问题,谢谢!

1)Any passport of the exchange visitor containing his/her U.S. visas
2)Legible copies of all DS-2019 (formerly IAP-66)
3)Notice of Entry of Appearance as Attorney or Representative (G-28) (if applicable)
4)Names and dates of birth of any J-2 dependents and/or the EV's J-1 spouse (if applicable)
5)I-94 Departure Record card (if still in the U.S.)
6)Alien Registration "A" Number (if applicable)

第一, 三, 六 我都没有, 第六项(最后一项)是什么意思啊?