◎ 题干
— I'll tell Mary about our changes tomorrow. 
— What? You ______ her yesterday.
[     ]
A. ought to tell
B. must have told
C. might have told
D. should have told
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I'll tell Mary about our changes tomorrow.— What? You ______ her yesterday. [ ]A. ought to tell B. must have told C. might have toldD. should have told …”主要考查了你对  【虚拟语气】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。