I found him sitting in his chair, pletely a magazine.
A. absorbing
B. being absorbed in
C. absorbed in
D. absorbing in
网友回答
A. absorbing
B. being absorbed in
(答案→)C. absorbed in
D. absorbing in
解析：考查过去分词作状语。be absorbed in 专心于做某事，句意：我发现他坐在椅子上，完全专心于一本杂志。在这里absorbed in 做伴随状语。