奇怪，我的H-1B 和F-2 同一天批准，急问怎么办？

昨天我还在这儿问，my H-1B was approved yesterday，我的F-2怎么办？Unbelievable,我刚收到notice said that my F-2 was approved. So both my H-1B and F-2 validate from August 5 in the same day. 我算什么现在？我可以工作吗？我哭笑不得地问：我是F-2 还是H-1B now? Stupid USCIS.

My situation is:
I was laid off in June under H-1B. So I immediately filed I-539 changed to F-2. In early August I got an offer so I used premium process to file for a new H-1B. Yesterday I got my new H-1B approved. But today I got notice saying my F-2 approved too.

Do I have to file another H-1B to change from F-2 to H-1B? Can I work now?

跪求各位高人帮忙解答。

Thanks