At the Special Olympics in Ireland more than 6 500 athletes from over 150 countries

问题补充：

At the Special Olympics in Ireland, more than 6,500 athletes from over 150 countries .

A. participated

B. joined

C. benefited

D. relied

答案：

(答案→)A. participated

B. joined

C. benefited

D. relied

解析：词义辨析。participated 参与，分享； join加入，参加（某个团体）；benefit有益于；relied信赖，依赖。句意：在特奥会上，有超过6500名来自150多个国家的选手参与了比赛。故选A。