LD需要去特定uscis to get green card stamp,还是随便哪个office都行？
-Find one in your area at this link:
https://www.uscis.gov/about-us/find-uscis-office/field-offices
要预约么？
-Just walk-in.
只剩两天就回中国了
没有拿到485 approval去也可以吧，
uscis应该在系统里看得到吧？
-Right. But you had better also print it out and bring it to the Office.
