At that time he looked angry because his son puter games all the afternoon
A. played
B. was playing
C. has played
D. had been playing
网友回答
A. played
B. was playing
C. has played
(答案→)D. had been playing
解析：考查时态。根据语境用一般过去时，可知他儿子整个下午一直在玩电脑游戏，故用过去完成进行时，选D。