问题补充：
As a young man, Comrade Zhou Enlai the students movements and later the Communist Party of China.
A. joined; took part in
B. took part in; joined
C. joined in; took part in
D. took part in; joined in
答案：
A. joined; took part in
(答案→)B. took part in; joined
C. joined in; took part in
D. took part in; joined in
解析：句意:作为一个年轻人，周恩来同志加入学生运动后来又加入了中国共产党。take part in后跟活动，join后跟组织，俱乐部等，所以选 B。
