1. (2021四下·越秀期末) 读短文，根据图片提示填写适当的单词，把短文补充完整。

It is Thursday morning. The children are having a PE lesson. They are doing sports in the playground. Some of the children are . Some of the mare doing the . Some of them are . Some of them are or . They are having a good time. It's so fun!