给爸妈b２延期，现在能网上提交申请吗？申请清单这样可以吗：
1. bank statements for the most recent 3 months;
2. Employement verification letter from my employer;
3. Submitted form 539;
4. My father/mom's passport( all the information page;
5. My father/mom's B2 visa( front & back);
6. My father/mom's I-94( front & back);
7. 延期信；
