选择方框里的单词，将短文补充完整。
sun mountains birds river flowers what rainbow park clouds nice |
This is a nature ____ .There is a ____ and some ____ in the sky.There are two ____ flying in the sky.Look! There is a beautiful ____ between the two ____ .There is a long ____ on the grass.There are some ____ on the grass. ____ a ____ picture it is!
