Franklin's ability to learn from observations and experience greatly to his success in public life.
A. owned
B. contributed
C. attached
D. related
网友回答
A. owned
(答案→)B. contributed
C. attached
D. related
解析：A.owned拥有，B. contributed 贡献，C. attached附上，D. related联系，句意：弗兰克的从观察和经历中学习的能力有助于他在公共生活上的成功。Contribute to有助于，促成，所以选B。