B-1在美國逗留時間問題

Well, haha, Sandy got the point. However, there are several other ways for you to get ur visa extended as below:
1. If you have sufficient evidence to support the reason you'll be staying longer.
2. Proof that you are willing to obey U.S. immigration laws will be important if you want to travel to the United States as an immigrant or nonimmigrant in the future. If you break immigration laws, you may also become subject to removal (deportation).
I have the official US Immigration website for you to review on how to extend your stay within US. You should behold all circumstances before your action.
USCIS:
http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=1ade96981298d010VgnVCM10000048f3d6a1RCRD&vgnextchannel=48819c7755cb9010VgnVCM10000045f3d6a1RCRD

Hi, if u are qualify for getting the greencard, you can stay in USA. e.g. get married, get the work visa from employer. hope this information can help you.