It’s hot in the shopping mall, because the air-conditioning system ______. A. broke up B. broke down...
2022-12-08 15:37:16 57次 2012-2013学年内蒙古巴市高三第五次模拟考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It’s hot in the shopping mall, because the
air-conditioning system ______.
A. broke up B.
broke down C. broke in
D. broke out
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