When it came to the topic whether students should take cell phones to school, nearly every student the discussion.
A. joined
B. attended
C. joined in
D. took part in
网友回答
A. joined
B. attended
(答案→)C. joined in
D. took part in
解析：考查动词和动词短语：A. joined加入(人,组织)，B. attended参加会议，上课，上学，C. joined in一块参加…D. took part in参加活动并在其中起作用，句意是：当说到学生是否应该带手机到学校，几乎每个学生都加入讨论。选C。