Dongdong: Hi, Sam.
Sam:
Dongdong: Can I ask you some questions?
Sam:
Dongdong: When is the Tree Planting Day?
Sam:
Dongdong:
Sam: We plant trees.
Dongdong:
Sam: Because trees can make the air clean.
| A. OK. B. Tree Planting Day in China is on 12th March. C. What do we do on Tree Planting Day? D. Why do people plant trees? E. Hi. Dongdong. |
