- Copy of passport, original I-94, and a cover letter
2. Do I have to send the oringinal I-94? is a photocopy good enough?
- Original requested per I-539 instruction
3. Can my parents go back to China before their oringinal I-94 expire? (if the process of the extension taking too long, I may have them return to China before get the USCIS decision)
- Yes
http://web.wenxuecity.com/BBSView.php?SubID=immigration&MsgID=361004