小弟把学生证跟身份证的一些资料扫描发过去了但SAS回邮件说这不足以证明我的学生身份，然后说希望我能提供以下任一文件。
Acceptable documents:

    A student ID with expiration date (those with no expiration date will not be accepted).
    A currently dated letter from a professor or registrar on university letterhead stating your academic status.
And/or
    A copy of your current transcript or online course schedule showing your name, the university name and courses you are registered for this semester.

但我的学生证没写毕业日期的。现在该咋办？学校证明好像很麻烦，第三点没看懂。

谢谢各位！