"Whoah! I'm so shocked! I never know you were good at formulas and computations! Where did you take that? I thought you repeat your first year in high school because you failed your math subject? Aww, dude!" 

"Bullshit, Ryan!" Jack exclaimed and he playfully narrowed his eyes on Ryan. But of course, Ryan and I just laughed at him. Well, that's true. He's actually one year ahead of us, but since he failed his math subject in his first year in high school, he needed to repeat ...