—Which sport will you ?—The boys’800-meter race.A. join B. take part in C. took part in

问题补充：

—Which sport will you ?

—The boys’800-meter race.

A. join B. take part in C. took part in

答案：

解析：句意：--你将要参加哪像比赛？--男子800米赛跑。A. join为加入某个组织或社团。B. take part in为参加某项活动。问句中有will 所以是一般将来时。故选B.