He came here to discuss it with you.A. on purposeB. by chanceC. for purposeD. on design

问题补充：

He came here to discuss it with you.

A. on purpose

B. by chance

C. for purpose

D. on design

答案：

(答案→)A. on purpose

B. by chance

C. for purpose

D. on design

解析：句意，他特地来这里和你讨论它。on purpose 特地 by chance 偶然地 for purpose通常和 of搭配，意思为为了……的目的 on design 没有这个固定搭配，故选A。