听下面一段材料,回答第1-3题。 1. Where did the fire probably start? A. On the first floor. B. On the second floor. C. On the third floor. 2. When was the building built? A. In 1930. B. In 1782. C. In 1718. 3. What was the building used as at the time of the fire? A. A history museum. B. A hotel. C. The old people's home.