do no reaction on knowing results

I have my music exams and the results just com out. My dearest teacher told me your results already come out. Then i just response "oh" and i continuing do the exercise that she gave which i haven't done.She also look in to something. After rew seconds,she say "ei, why you don't have any reaction on knowing your results, and actually do you understand what i'm telling or not".Then i say yes.She ask me again what do u think the marks u get,pass or fail.I say pass loh.Then she tell me u really pass your exams , but before this what marks do you hope to have.I tell her that at least better then last exams.Only this i hope because i didn't do very well on that exams. She tell me that i just pass but lower than last exams. I also accept it.(in the conversation with my teacher i really do no reaction and emotion, i think my teacher is quite disappointing on these.)