It was the first class of the day. tu walked into the room as if nothing had happened; that morning, tu had missed the bus and had to walk the nine miles all the way to school. tu plopped down in your asiento siguiente to Sophie. "What's the matter Mary?" she asked. Mary sighed. "You know why. Why didn't tu tell the bus driver to wait?!" tu said, your voice raising. Sophie blinked. "I'm sorry, I didn't know tu were coming today!" she said. "Why are tu actuación all amargo, amargos besides the point tu had to get a little exercise?" Sophie asked, taking out her math book and looking over her homework. You...