问题描述：
Fortunately somebody who happened to be passing by called the fire department ______ the fire broke out.
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考点提示：副词,副词的比较级,疑问副词,连接副词
最佳答案： | C |
| 略 |
Fortunately somebody who happened to be passing by called the fire department ______ the fire broke
Fortunately somebody who happened to be passing by called the fire department ______ the fire broke
最佳答案： 