我11/17遞交了N400, 12/17 打指紋。好像是大概11/18才能辦好？
但是我的綠卡還有一個月就過期了。現在有點猶豫要不要再花更新綠卡的錢，還是等到必須的時候再辦新的綠卡。
-Unless you will use the green card to travel or change job, you don't need to renew it.
-Unless you will use the green card to travel or change job, you don't need to renew it.
有人知道從寄出更新綠卡申請到可以回中國大概要多長時間嗎？
-You can file I-90 online if you want to renew it, then print out the receipt and bring it and your passport to the local USCIS Office to get the green card stamp on your passport. Then, use the stamp to travel.
-You can file I-90 online if you want to renew it, then print out the receipt and bring it and your passport to the local USCIS Office to get the green card stamp on your passport. Then, use the stamp to travel.
