Dr. Peter Spence, headmaster of the school, told us, “ fifth of pupils here will go on t

Dr. Peter Spence, headmaster of the school, told us, “ fifth of pupils here will go on to study at Oxford and Cambridge.”
A. \, A
B. \, The
C. the, The
D. a, A

(答案→)A. \, AB. \, TheC. the, TheD. a, A解析：考查冠词的用法。句意为“校长Peter Spence 告诉我们说，我校的五分之一学生将到牛津大学和剑桥大学去学习。”headmaster 校长，职务做表语和同位语的时候，前面不加冠词；a fifth 表示五分之一。选A。

这个解释是对的