of course, there are many super nice people in this forum.
I have a lawyer for 140 & 485 application, but myself did 90% of job. since I submitted my 485 and got EAD, i just work and did not care much about obtaining GC.now i think FBI and immigration bureau are examples of america government, i doubt i should stay in such a country. maybe just earn some money and go back. i believe i can live well in china too.
thank you and other advisors here very much! God bless you!