Mary hurt her friend’s feeling but she didn't do it purpose.A. withB. inC. byD. on

问题补充：

Mary hurt her friend’s feeling, but she didn do it purpose.

A. with

B. in

C. by

D. on

答案：

A. with

B. in

C. by

(答案→)D. on

解析：考查固定词组。On purpose故意；with the purpose of…带着…的目的；句意：Mary伤害了朋友的感情，但是她不是故意那样做的。根据句意说明D正确。