A: Hi, Jane. Would you like to help save the environment? B: I'd like to. __1__ A: Well, first, you can start by turning off the lights when you leave a room. B: Yes. That's easy. __2__ What's next? A: Second, you can ride a bicycle. Don't take a bus or a taxi if you don't have to. B: __3__ What else? A: Third, try to recycle paper. B: Mmm. Newspapers, magazines, we have a lot of paper at home. Good idea. A: The fourth idea is to turn off the shower when you're not using it. B: __4__ A: Yes. Get wet, turn off the shower, put the shampoo(洗发剂) in your hair and then turn on the shower and wash it out. B: Yes. __5__ We have to save water.