◎ 题干
There _____ lots of old houses here. But now we can see only tall buildings.        
[     ]
A. used to have
B. used to be
C. was used to be
D. was used to have
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“There_____ lots of old houses here. But now we can see only tall buildings.[ ]A. used to haveB. used to beC. was used to beD. was used to have…”主要考查了你对  【动词短语】【therebe句型】  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。