◎ 题干
—I’m sorry!  I would have taken him to hospital if I had known he was seriously ill.  
—But_____.
[     ]
A. you didn't        
B. you hadn't    
C. he wasn't        
D. you aren't  
◎ 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’m sorry!I would have taken him to hospital if I had known he was seriously ill.—But_____.[ ]A. you didn'tB. you hadn't C. he wasn't D. you aren't…”主要考查了你对  【一般过去时】  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。