My sister the league last month and she has decided to the activities to help the aged in town next week.
A. joined; take part in
B. joined in; join
C. attended; join
D. took part in; join in
网友回答
(答案→)A. joined; take part in
B. joined in; join
C. attended; join
D. took part in; join in
解析：考查动词用法辨析。Join指参加组织，团体，成为其中的一个成员；join in参加某项小型的活动；attend参加(会议)；take part in参加（大型）活动；句意：我妹妹上个月加入了共青团，她决定参加各种活动来帮助城里的老人。故A正确。