◎ 题干
—Why didn’t you come to Mike’s birthday party yesterday?  
—Well, I _____, but I had something important to do at the moment.  
[     ]
A. should            
B. must              
C. should have            
D. must have
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Why didn’t you come to Mike’s birthday party yesterday? —Well, I _____, but I had something important to do at the moment.[ ]A. shouldB. mustC. should ha…”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。