不是打印receipt就可以了吗?那个上面就有receipt number。receipt是这么说的,
You will receive an official Receipt Notice (Form I-797) within 7-10
days by standard mail with the same Receipt Number found at the top of this
page.
【在 l******5 的大作中提到】 : 这类东西都叫797。 这个表格当然寄了, 否则IO如何知道你的CASE NUMBER