回複:如果不是這幾種情況呢?
I think so. But I believe a person with J1 or J2, cannot apply AP, cannot submit I-485.
Even if a person with F-1 visa goes back to China, without AP, his/her I-485 will be 作廢. He/she must resubmit I-485 after he/she returns to the US.
Just for reference, I am not the attorney.