看了版上485清单里有这么一条,Copy of all current & previous USCIS approval notices/documentation (suchas: previous H/L approval/extension notices (Form I-797's), copy of all previous I-20's (if ever in F status), copy of any EAD's (if held practical training, L2/J2 work authorization), IAP66's (if held J status). 不过在485 instruction里没见到说需要这个啊,而且需要所有approval notice,俺n 年前的IAP66 早都不见了,不知道怎么补,郁闷