题目：
根据短文内容，完成下列句子。
John: Look! This is my picture.
Many: It's beautiful! Is it a nature park?
John: Yes, it is. There is a lake in the park. There are many rivers and bridges.
Many: Is there a forest in the park?
John: No, there isn't.
Many: Are there any flowers?
John: Yes, there are. You can see many flowers on the grass.
Many: Oh, yes. Then we can't run on the grass.
It's a nature (1) . There is a (2) in it. There are many (3) and (4) . But
there isn't a (5) . You can see many flowers (6) (7) (8) . So we can't run (9)
(10) grass.
答案：
1. park 2. lake 3. rivers 4. bridges 5. forest 6. on 7. the 8. grass 9. on 10. the
