◎ 题干
Sorry, I can't go. I _______ too much homework to do.  
[     ]
A. do    
B. had    
C. have    
D. did
◎ 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“Sorry, I can't go. I _______ too much homework to do.[ ]A. doB. hadC. haveD. did…”主要考查了你对  【一般现在时】【主谓一致】  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。