C1083

Hearing Lan Yuv's words, Si Yitian bit her lips and nodded. She couldn't help but ask, "Why does my brother always get 100 points, and everyone doesn't like to play with him? You've explained so much, but I still don't get it. "

"Ai, I can't explain it to you clearly." Lan Yuv raised his eyebrows and looked at the exercise book in his hands: "Anyway, I'm going to start writing math questions now