David and his brother Greg don't go to school(上学) in the morning. They go to school after lunch, at one o'clock. They have math at 1:15. David likes math because it's interesting. Greg doesn't like math. David and Greg have PE after math. They like the teacher, Mr. Wright, and they like PE because it's fun. But Greg's favorite subject is Spanish(西班牙语) and David's favorite is music. He plays the piano( 钢琴) and the violin(小提琴).