阅读短文，回答下列问题。
Sue: What are you going to do this weekend?
Ben: I am going to plant a tree in my garden.
Sue: A tree?
Ben: Yes, just a small one.
Sue: How do you do that?
Ben: First, dig the soil, then put the plant in the soil.
Sue: That's all?
Ben: Then you have to water it and wait for it to grow.
Sue: That sounds interesting!
Ben: Come to my house this Saturday afternoon. We can do it together.
Sue: That's great.
1. Does Ben want to plant a tree in his garden?
2. When is Ben going to plant the tree?
3. Does Sue know how to plant a tree?
4. What does Ben first do to plant a tree?
5. Is Sue going to plant the tree, too?