回复：b2延期需补材料--求助

来源: 于 2009-11-11 11:54:55 [旧帖] [给我悄悄话] 本文已被阅读：次

Juat a guess, you must have indicated that in your current or previous application that your mum will/would visit ... and USCIS wanted to prove so. Otherwise I-94 would be good enough.

Good luck!