第一节
听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 How did the man try to protect the children from being hurt by the fire
A. He cleaned the house. B. He bought something to guard against it. C. He asked the woman for advice.