If an application is denied,the first 4 months since

来源: 于 2006-03-12 12:45:15 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

the applicant filing the case is considered leagally,
you may write to CIS to withdraw your first pending I-539 for B2 after you getting second I-539 receipt for F1. It will be fine because a new I-539 case is pending
at that time.