回复：求助求助，紧急求助！在线等

我担心将来申请绿卡的时候会不会因为这九天的grace period 的GAP给我引来麻烦？
-No any trouble at all, but you need to stop working after your OPT expires and before your H1 is effective (from 7/21/2009 to 7/31/2009).