完成对话。在对话的空格中填上适当的单词，使对话完整正确。一空一词。 A: Oh, what happened to you? B: It's nothing 1______. A: But I think it is serious enough for you to be in 2______. B: Oh, I just injured my arms. A: Well, how did it happen? B: This morning I was walking down the street near our factory when I found a house on fire (着火). The door,the windows and everything in the house were 3______. People stood in front of the house, not knowing what to do. The 4______ air and heavy smoke 5______ them out, but I heard someone crying 6______ in a weak voice. A: What did you do then? B: I got 7______ all wet with some 8______ and rushed into the house. A: Did you get 9______ out? B: Yes. It was a little girl. She was then given a 10______ aid. When the fire was put out, I found my arms injured.