I had my naturalization interview on July 22nd at Chicago's office, my application is based on 5 years. I was called to the interview about 50 minutes passed my appointment. Everything went very smooth and I passed the test. At the end the IO gave N-652 with checked box, You passed the tests of English and U.S. history and government an he checked B) A decision cannot yet be made about your application. When i asked IO why is that, he said that my file is incomplete and he needs to review the missing part. I asked if I need to submit anything, he said no, the missing part was not sent with my file. I just wonder what to do now. Do i have to just wait? Did anyone have similar case? Thank you