--- Mary’s got crazy 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 

A

解析試題分析：句意：——瑪麗得了瘋病已經(jīng)被送進精神病院了。你告訴她的老板了嗎？——是的。但是我本應該先就告訴她丈夫的。Should have done 本應該做（實際上沒做）。shouldn’t have told本不該告訴；must have told肯定已經(jīng)告訴了；needn’t have told沒必要告訴。結(jié)合語境，選A。
考點：考查情態(tài)動詞的用法。

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