C86 Mathematics Test

"Sister Wan, Brother Feng, how did you do on the exam? Anyways, I'm dead for sure this time. I don't know if this form teacher has gone crazy or not, and there has never been a proctor as strict as this. I haven't written a single word, and the exam papers are all blank. Now, when I go home, I'm going to receive my father's teachings." Suen Tianyuan sighed