问题
选择题
— Mary’s got mad and has been sent to the mental hospital. Did you tell her boss about that?
— Yes, but I _____ her husband first.
A．should have told
B．shouldn’t have told
C．must have told
D．needn’t have told
答案
答案：A
考查should与动词不定式的完成时连用的含义。should have done表示本来应该做而实际上没做，shouldn’t have done表示本来不该做但实际上做了。从本题have told her boss可知没有先告诉她先生，但应该告诉的，因此选A