My sister the League last month and she has decided to the activity to help the aged next week.
A. joined; join in
B. took part in; join
C. joined; attend
D. joined in; join in
网友回答
(答案→)A. joined; join in
B. took part in; join
C. joined; attend
D. joined in; join in
解析：词义辨析。Join加入某一团体或组织，成为其中一员；join in参加活动；took part in参加重大活动；attend出席会议，仪式，典礼等。 the League入团，用joined； the activity参加活动用join in。选A。