There __________a pool in the park, but now it is gone. A. used to have B. used to be C. will be D. ...
2023-01-06 03:04:20 21次 2014-2015学年四川蓬溪大石桥中学九年级上期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There __________a pool in the park, but now it is gone.
A. used to have B. used to be
C. will be D. must be
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