Question about H1->F1

来源: 于 2004-04-07 11:23:14 [旧帖] [给我悄悄话] 本文已被阅读：次

How long could I work after I received the receipt of F1 application? Till to the approval data? Since it need to 2 weeks to mail the approval notice, is it illegical working during this period (mail time)?