I’m sorry to tell you that we decided your plan.A. to abandonB. abandoningC. to quitD. qu

问题补充：

I’m sorry to tell you that we decided your plan.

A. to abandon

B. abandoning

C. to quit

D. quitting

答案：

(答案→)A. to abandon

B. abandoning

C. to quit

D. quitting

解析：考查动词和不定式：. Abandon放弃， quit停止，而且decide 后面接不定式做宾语，句意：很抱歉告诉你我们要放弃你的计划。选A。