Last month I the high jump in our school sports meet.A. took part in B. joinedC. join

问题补充：

Last month, I the high jump in our school sports meet.

A. took part in B. joinedC. join

答案：

解析：join多指参加某组织，成为其中的一个成员； take part in=join in ，take part in指参加群众性活动、会议等,往往指参加者持有积极的态度，起一份作用；句意：上个月，我参加了学校的跳高比赛。结合语境可知选A。