回複：綠卡下來了，父母在國內有回美證，需要把綠卡寄回去嗎還是就用回美證回來？

父母回國的時候，回美證已經下來了但是綠卡還在處理。現在綠卡也下來了。想他們下月回美國，需要把綠卡寄回去嗎，還是隻用回美證回美就行了？
-Either. If they use AP to come back, just tell the IO at the port of entry that their green cards have been approved during their travel in China.