請問老師
1.寄出父母綠卡RENEW的文件和G-1145表已經快一個月了，沒有收到回複信。郵件跟蹤號說寄到了，但是沒有收到移民局正式的回複信。會不會還是說明寄丟了？
-Be patient and wait.
2. 綠卡還有半年就到期了，老人還是想回國。有什麽辦法嗎？-Bring the passport and the I-90 receipt notice to the local USCIS Field Office to get the I-551 (green card) stamp to travel if they leave US before the green card renewal approval.
