Yes.

要提前多久提交文件？
-Had better file N-400 maximum no later than 6 months after the green card expires.m Otherwise, you need to renew your green card.


還有，在審批期間（如果綠卡過期）還能工作嗎？
-Yes for your current employer, but you may not work for a new employer because the new employer normally wants you to show your valid green card.

如果入籍時間太晚（年底就過期了），申請綠卡要提起多久？申請期間（如果綠卡過期了，新的還沒有批下來）能工作嗎？
-Same as above answer.

謝謝大家！

所有跟帖： 

• THANKS! -peacehall- ♀ (0 bytes) () 04/13/2015 postreply 18:55:13

• 再請教8老師。在審批階段， -peacehall- ♀ (357 bytes) () 04/13/2015 postreply 19:02:54

• Reply -863211- ♂ (743 bytes) () 04/13/2015 postreply 19:08:16

• OK, I SEE .THANKS A LOT! -peacehall- ♀ (0 bytes) () 04/13/2015 postreply 19:14:17