my mother got visa at Beijing wanysh2005-02-26 01:49:12

This is good news, my mother just got visa in Beijing on 25/2.
I have questions:
(1 )The visa is only 4 months staying in USA, and single entrance. May I apply for her visa extension after she arrives?
she is 60 years old, she won't visit us after this time, so I don't mind if the extension causes her future visa refused.
(2) If I apply for extension, where to apply and when to apply?

Thanks very much for any reply.

after your mother arrives here

回复：after your mother arrives here

在这请问要给父母办签证, 我需要提供什么文件?

回复：在这请问要给父母办签证, 我需要提供什么文件?

回复：my mother got visa at Beijing