用括号中单词正确形式填空：,F3J-n5Y2T0X
— Do you want to play chess this afternoon?,F3J-n5Y2T0X
— No, I want to watch a (e-N(m4u:m4]2T(D'_,y*F'P;a（run） race in our school.,F3J-n5Y2T0X