摘要： happened to be no one in the building when the fire broke out. A. It B. There C. This D. That
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_________ happened to be no one in the building when the fire broke out.
A. It B. There C. This D.That
查看习题详情和答案>>_________ happened to be no one in the building when the fire broke out.
A. It B. There C. This D.That
查看习题详情和答案>>happened to be no one in the building when the fire broke out.
A. It B. There C. This D. That
查看习题详情和答案>>