Every four years athletes from all over the world the Olympic Games .
A. join
B. attend
C. take part in
D. sit for
网友回答
A. join
B. attend
(答案→)C. take part in
D. sit for
解析：这题考查近义词辨析：A. join加入（组织，人）B. attend参加会议，上课等C. take part in参加（活动，比赛）D. sit for参加（考试等），句意是：每四年全世界的运动员参加奥运会。选C。