Look! Xiao Wang is too sleepy to work . He up watching TV .
A. mustn''t have stayed
B. shouldn''t have stayed
C. mustn''t stay
D. ought not to stay
网友回答
A. mustn''t have stayed
(答案→)B. shouldn''t have stayed
C. mustn''t stay
D. ought not to stay
解析：
shouldn''t have stayed 表示过去本不应该做某事，而事实却做了。含埋怨、责备之意。