Thanks all!!! Case approved!!!!
The interview was at 10am and we were there 30mins early, we were called inside to interview right at 10am.
The interview was very short about 10-15 minutes. Very thing was very sillimar to what Dongseokji said. After taking an oath, she than asked me all "No" questions. and verified all my info and my father's info. Then asked for my I-94, she took it and said that my case was approved and the GC will be in mail in 2-3 weeks. She gave me an approval letter and told me no aboard before the GC.
A very big day for me!!! What a BIG step in this LONG process!! And I am glad that it's close to the end!!!!
Good luck to all whose interview on the way!!!
Congrats Dongseokji and CALVIN_LJQ.