问题补充：
When he was a student, he would get up early and work late into night, believing “”
A. Never too late to learn.
B. Never count your chickens until they are hatched.
C. The early bird catches the worm.
D. Everyone has his feet of clay
答案：
A. Never too late to learn.
B. Never count your chickens until they are hatched.
(答案→)C. The early bird catches the worm.
D. Everyone has his feet of clay
解析：考察英语中的谚语。A. 活到老，学到老。 B. 别高兴的太早了。
C. 早起的鸟儿有虫吃。 D. 每个人都有他致命的弱点。
句意：当他是个学生时，他会早起，学习到深夜，相信……。故选C。
