自由生活的阿米巴增殖方式是（）

A.二分裂繁殖

B.裂体增殖

C.有性增殖

D.无性增殖

E.世代交替

Having retired，he________the club for old men and plays chess every day there.[ ]

A．joins

B．takes part

C．attends  

D．participates