Dear Mom and Dad, I'm happy to tell you that I'll be able to join in the Green Group of my school. The Green Group is holding an environment month. And there will be a lot of interesting activities to do in this program. We will clean the lakes' banks on the weekends, and plant trees and flowers in the school garden and water them every afternoon after class. In addition, we are planting young trees and plants to sell to other schools. We hope that we can give more green color to the city and earn some money for school Y&Y. The program is really interesting, isn’t it? I will tell you more about the group activities later. Love, 1.What plan is the Y&Y holding? 2.Are they going to plant trees and flowers in the school garden? 3.What do they hope when they take part in these activities? 4. Who wrote the letter?