---Look, our headmaster is over there, playing basketball with some students of our class.
--- Oh, he must be to his students.
A. possible
B. valuable
C. available
D. accessiblee
网友回答
A. possible
B. valuable
C. available
(答案→)D. accessiblee
解析：四个选项分别表示合适的、贵重的、有效的和易相处的，根据题意选D，和学生一起打篮球，这样的校长肯定是易相处的，故选D。