阅读理解。根据短文的内容选择正确选项。
It's Sunday today. We are playing in the park. Lingling is rowing a boat on the lake. Look at the people on the left. They are doing taijiquan. Some girls are taking pictures of flowers. Some boys are playing football. What is Sam doing? He is playing basketball with Daming. He is strong. He is the winner. There is a supermarket next to the park.