To be successful, you must be smart, confident, and, honest.
A. therefore
B. above all
C. however
D. after all
网友回答
A. therefore
(答案→)B. above all
C. however
D. after all
解析： 词义辨析。therefore因此；above all首先，最重要的是；however然而；after all毕竟，终究。句意：要想成功，你必须聪明，自信，最重要的是要诚实。所以选B。