She stepped on my foot , not , which made me angry.
A. by chance; on purpose
B. on purpose; by chance
C. for purpose; by chance
D. by chance; for purpose
网友回答
A. by chance; on purpose
(答案→)B. on purpose; by chance
C. for purpose; by chance
D. by chance; for purpose
解析： 考查短语辨析，by chance偶然地，on purpose故意地，句意：她故意踩了我的脚，不是偶然地，使我很生气。所以选B。