It was creative thinking that I took the course, not to get high marks in exams.
A. developing
B. to develop
C. developed
D. to have developed
网友回答
A. developing
(答案→)B. to develop
C. developed
D. to have developed
解析：本题考查非谓语动词。题干为强调句，强调状语to develop creative thinking，选B。