When I came in，I saw her in the sofa in thought．
A. sat；deep
B. sitting；deeply
C. seated；deep
D. seating；deeply
网友回答
A. sat；deep
B. sitting；deeply
(答案→)C. seated；deep
D. seating；deeply
解析：试题分析：考查非谓语动词和副词deep的用法。seat为及物动词，后面不加宾语时用被动形式，即seated，而sit是不及物动词，用sitting形式，“deep in thought”指“陷入沉思”，所以答案选C。