Being detemined is a kind of quality and that’s it takes to do anything properly.A. howB.

问题补充：

Being detemined is a kind of quality and that’s it takes to do anything properly.

A. how

B. which

C. where

D. what

答案：

A. how

B. which

C. where

(答案→)D. what

解析：what引导表语从句并在从句中作宾语，“做好任何事情所需要的”。