A、It may cause an explosion. B、The phone may not work in that situation. C、Others are not responsible for the event. D、No one wi

W: Have you read today’s paper?
M: Not yet. But I can guess what you’re going to talk about. Is it the gas leak event?
W: You must have watched the local news on TV, huh?
M: No. (8)I have heard about that from the radio.
W: It’s a pity that it claimed two lives!
M: Yes, gas leak is indeed the most dangerous situation in our daily life, I think.
W: You are quite right. But what can you do if it happens to you?
M: Well, I can’t remember where I’ve seen a report, which says if there is a strong smell of gas in the house, go to the kitchen at once and check the stove and the gas hose.
W: What if you hear a hissing sound?
M: If so, (9)turn off the stove and open all the windows immediately.
W: Shall I call the gas station for help?
M: Oh, no. (10) Remember that never make a phone call or touch any electric switch in the house, because even a spark might cause an explosion, which is the most dangerous situation.
W: Then I just sit there doing nothing?
M: (11) You just open all the windows, and take your family members out of the house and inform the gas station.
W: OK. I see that. Thank you for telling me so much about this.
M: My pleasure. 8. How did the man know about the gas leak event?
　　9. What should we do when hearing a hissing sound?
　　10. Why does the man advise not to make calls when there is a gas leak at home?
　　11. What should we do when gas leaks according to the conversation?