◎ 题干
—Did your father smoke a lot?         
—No, he didn't. But he _____ that.        
[     ]
A. used to do
B. used to doing            
C. was used to do
D. was used to doing
◎ 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“—Did your father smoke a lot?—No, he didn't. But he _____ that.[ ]A. used to doB. used to doingC. was used to doD. was used to doing…”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。