Thousands of athletes in many countries will pete medals in the 2008 Olympic Games in Beijing.
A. involved; in
B. involving; by
C. to involve; against
D. involved; for
网友回答
A. involved; in
B. involving; by
C. to involve; against
(答案→)D. involved; for
解析：句意：在许多国家涉及到的成千上万名运动员将为了夺取金牌参加2008年北京奥运会。be involved in 涉及，卷入，involved in在这作定语，pete for 为了什么参加比赛。故选D。