刚刚收到面试通知，请问“you must bring: any evidence of selective service registration" 是什么意思？
-If you are a male and were 18 to 26 years old when you got your green card, or you are between 18 and 26 now, you had/have to regsiter the selective service after you got green card, and you need to bring the proof of the selective service registration fr N-400 interview. The seletive servce means if the war occurs (e.g. world war III), US Goverment may ask you to join the army to fight.
If you were > 26 at that time, then you may just ignore it. Explain to the IO if asked that you wre > 26 when you got the green card.
另外除了100道题，还会问其他的吗？要带其他材料吗（比如税表？）
-Check the appointment notice.
