补全对话

A. It is very fresh. B. Sure. C. We should plant more trees. D. Maybe trees keep the air clean. E. We can get a lot of things from trees.

Sue: Dad, shall we go to the park this weekend?

Dad: Why do you like to go to the park?

Sue: I like the air there.

Dad: Do you know why the air in the park is fresh?

Sue: I think there are many trees in the park.

Dad: Yes. You are right. Trees also can cool the air.

Sue: I like trees. We can get wood from trees. We can get fruit from trees.

Dad: Yes.

Sue: Trees are important in our life.

Dad: That's right!