回复：COS， B-2 转 F-1 的 的时间差问题

来源: 于 2009-03-27 19:03:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

As long as your child files COS before B2 expires, it should be OK, if he/she is already in US.