Success in life doesn’t happen . It’s the result of devoting yourself to what you’ve set out to do.
A. by design
B. by nature
C. by chance
D. on purpose
网友回答
A. by design
B. by nature
(答案→)C. by chance
D. on purpose
解析：考查介词短语辨析。句意：成功不是偶然的，它是你专心去做某事的结果。所以答案选C、偶然，碰巧。B、自然地；A、故意地；D、故意地=by design。