He had been practicing his spoken English with the of working as a volunteer for World Expo Shanghai and his dream finally came true.
A. effort
B. exception
C. intention
D. contribution
网友回答
A. effort
B. exception
(答案→)C. intention
D. contribution
解析：考查名词辨析：A. effort 努力B. exception例外C. intention打算 D. contribution贡献，句意是：他一直在练习口语目的是在上海世博会上做自愿者，最终他的梦想成真了。With the intention of“目的是”，选C。