1. 给下列句子选择适当的答语。

A. Three. B. Yes, there is. C. No, there aren't any ducks. D. Why not? E. Yes, there are some trees.

1. （1） —Is there a river in the nature park?

   —

3. （2） —Let's go to the nature park!

   —

5. （3） —Are there any trees?

   —

7. （4） —Are there any ducks in the lake?

   —

9. （5） —How many?

   —