阅读理解
Today is Sunday. It's a sunny day. I'm in the park with my best friends Mary and Carol. There are many people in the park. They're doing different kinds of things. Some are walking by the lake. Some are talking under a big tree. Some are singing. Some are dancing on the playground. There are some kids playing tennis. Mary, Carol and I are sitting by the pool. It's really a fun day. The people here are all very happy. They're having a good time.
阅读短文，判断正误
