a successful fish scientist you need to have a curious mind and be able to work on your

问题补充：

a successful fish scientist, you need to have a curious mind and be able to work on your own.

A. Become

B. To become

C. Becoming

D. Having become

答案：

A. Become

(答案→)B. To become

C. Becoming

D. Having become

解析： 考查不定式做状语。句意：为了成为一名研究鱼的科学家，你需要有好奇心并且能够依靠你自己工作。所以选To become做目的状语，选B。