IO: What status is your green card application?
me: pending
IO: Who is the petitioner?
me: the company
IO: What is your farther and mother's name?
me: ...(My parents just visit us couple months ago)
IO: Where are they now?
me: China
IO: What was the purpose of your trip?
me: ...
IO: How long was your trip?
me: ...
IO: How long have you stayed in US?
me: more than x years since the year of xxxx.