After her son died in a car accident, the old lady would sit at the window, out and in thought.
A. looked; lost
B. looking; losing
C. looked; losing
D. looking; lost
网友回答
A. looked; lost
B. looking; losing
C. looked; losing
(答案→)D. looking; lost
解析：考查非谓语动词。第一空look与主语the old lady为主谓关系用现在分词作状语；第二空be lost in 沉浸在 句意：在儿子死于车祸后老人经常坐在窗前向外看沉思着。