A、It will notify the fire apartment. B、It can be used to put out a fire. C、It’ll give a warning that a fire has started. D、It’s

W: Did you hear (22) the story on the news this morning about the apartment fire down the street?
M: I heard something about it. What happened exactly?
W: A fire started at about 3 o’clock in the morning in an apartment complex with about twenty apartments. (23) One of the apartments was completely destroyed, and several of the others were damaged.
M: Do they know how the fire started?
W: They’re not sure at this point,but they believe that it was started by someone smoking in bed.
M: It’s a shame that one careless person can cause so much pain for others,not to mention the thousands and thousands of dollars of damage.
W: Even more serious than the damage to property is the harm to the apartment’s occupants. I hear that several residents were rushed to the hospital,but at least none of them died.
M: It’s all so frightening. I hope this is not gonna happen again.
W: (22) Do you know of anything I can do to keep this from happening to me?
M: I guess the best thing to protect yourself is to make sure that (24) you have a smoke alarm and a fire extinguisher in good working condition. (25) The smoke alarm will give you an early warning that a fire has started,so you can call the fire department. If it is a small fire,maybe you can use the fire extinguisher to help put out the fire before the fire trucks arrive.
W: That’s good advice. I think I’ll go home and check my smoke alarm.
22. What is the topic of this conversation?
23. According to the woman, how extensively were the apartments damaged?
24. What advice does the man give to the woman to protect her from fires?
25. According to the man, what is the purpose of a smoke alarm?