完成对话
A: Are extreme sports popular in your country? B: They' re not very popular.【D1】______There is a TV program on about them each week. A: I think that the people who do the skateboarding are very skilled. 【D2】______ B: The kids who do it are so young...Well, it' s better for them than sitting at home watching TV all day! A:【D3】______ B: Yes. I' m going bungee jumping on Sunday. I am very nervous about it, but my friends convince me to give it a try. A:【D4】______The organizers have lots of safety procedures. Can I come and watch? B:【D5】______You might even be tempted to do a bungee jump. A: I might. It' s something I' ve often thought about doing. A. It must take a lot of practice to stay on the skateboard. B. I'm afraid not. C. Would you like to try any extreme sports? D. I guess so. E. Which sports are usually featured on the program? F. Many people watch them on TV. G. I'm sure you will be safe.