把下列词语整理成一句通顺的话。     

1．操场上    在    打乒乓球    李小明和王小红     

2．辛辛苦苦    我们    农民伯伯    种出来的    粮食    吃的

3．尾巴    抖动    孔雀    美丽的    不停地

4．随着音乐    同学们    在操场上    做  很有节奏地   早操 

There are four birds ______ the tree. And there're many oranges ____ it, too. [ ]

A. in, in

B. in, on

C. on, in

D. on, on