Generally speaking being hard-working is just it takes you to be successful in your care

问题补充：

Generally speaking, being hard-working is just it takes you to be successful in your career.

A. what

B. that

C. where

D. which

答案：

(答案→)A. what

B. that

C. where

D. which

解析：考查表语从句，从句中it takes you后缺少宾语，所以用what，选A。