After her son’s death, the old lady sit at the window, deep in thoughtA. wouldB. shouldC

After her son’s death, the old lady sit at the window, deep in thought．
A. would
B. should
C. could
D. might

(答案→)A. wouldB. shouldC. couldD. might解析：考查情态动词。Would 会，过去常常，should 应该，could 能，might 可能，句意：她的儿子去世之后，这位老妇人常常坐在窗户旁边，陷入沉思。Would do 过去常常做某事，所以选A。

好好学习下