I learned from my book that it was nothing but ten years of hard work that his success in

问题补充：

I learned from my book that it was nothing but ten years of hard work that his success in business.

A. led to

B. looked up

C. referred to

D. got through

答案：

(答案→)A. led to

B. looked up

C. referred to

D. got through

解析：本题考查短语辨析。A导致；B查询；C参考，提及；D经历。句意：我从我的书学到了只有的努力导致了他生意的成功。