1)她的F1是不是也自动被取消了?
-Not yet, but she can not use it unless she has the valid I-20 (the school accept her again).
2)我现在是H1B, 她来的话,是不是要重新申请H4?
-Yes.
签证官会不会问为什么要重新申请H4?
-May not. If yes, just explain that she changes her mind. The F-1 visa will not affect her H-4 visa application.
很困惑。十分感谢老师们的指点!