The boy is often found in reading books.
A. absorbs
B. is absorbed
C. absorbing
D. absorbed
网友回答
A. absorbs
B. is absorbed
C. absorbing
(答案→)D. absorbed
解析：考查过去分词做主语补足语的用法，find sb done结构的被动是sb be found done，因为 sb be absorbed in专注于，做主语补足语也是过去分词做补足语。句意是：这个男孩经常被发现专注的看书。选D。