When I finished the story, Lenin jumped up from his chair and started pacing the floor, , deep in thought.
A. with his head bending
B. in his head bent
C. his head bending
D. his head bent
网友回答
A. with his head bending
B. in his head bent
C. his head bending
(答案→)D. his head bent
解析：语法结构题。本句的难点是：his head bent是独立结构，his head是逻辑主语，bent是逻辑谓语。本句的意思是：我讲完故事后，列宁从椅子上跳了起来，开始在屋千里踱来踱去，低着头，陷入沉思。