单选题：根据下面材料，回答题：I once found out that doing a favor for someone c

根据下面材料，回答题：
I once found out that doing a favor for someone could get you into trouble. ! was in the eighth grade at___56___time, and we were having a final test. During the test, the girl next to me___57___something, but I didn't quite catch it.___58___I leaned over her way and found out she was asking me
if I could___59___her apen. She showed me that hers was___60___ink and___61___not write. I___62___to have an extra one and I handed it to her.
After the test papers had been63, the teacher asked me to stay in the room. As soon as we were___64___, she began to talk to me about65it meant to grow up, and how important it was to stand___66___your own feet. For a long time, she talked about the importance of___67___and the harm of cheating, she made me___68___that I would think seriously about what she'd said. I kept69for quite a while why she had to talk to me about all those things.
Later, I found out that she___70___I had done some cheating in the test, and___71___answers from the girl's test paper. I managed to___72___about the pen, but she said___73___seemed very wrong to her that ! didn't mentioned anything about it___74___she talked to me right after the test. I am sure she continued to believe that I had cheated in the___75___of the test.
________ A．any
B．a
C．the
D．one