Danny: Hello Vy, how do you do?
Vy: Hi Danny, I'm fine. And you?

Danny: I'm interesting because I have just read a book about many environmental problems. 
Vy: Wow, so what have you learnt from that book?
Danny: I've learnt how important the environment is. It plays a special role in our life and also affect to the existence of life on the Earth. 
Vy: What an amazing knowledge! Could you tell me some environmental problems? I'm so curious. 
Danny: Of course! The most serious problem is environment pollution. Our environment is polluted by wars, behaviour of humans, natural disaster and so on. Many factories and people are adding pollutant into environment such as river, soil, forest.
Vy: OMG! So what should we do to protect the environment?
Danny: I think we should explain our friends, families about environment pollution and attend many activities like growing trees, classifying trash, recycling,...
Vy: I want to do environmental activities. Do you know any activity?

Danny: I will attend an activity next week. Would you like to go with me?
Vy: Sure. Let's walk and talk more environment!
Danny: Ok.