阅读判断。
    Today is Saturday. It's a nice day. Some students are in the nature park. Ann is drawing pictures. Lily is playing with Lucy. Please work quietly. Mike is listening to music. Zhang Peng and John are flying kites. Amy and Chen Jie are eating cakes. Oh, please keep the ground clean. Wu Binbin and Robin are speaking English. They're talking quietly. Some boys are playing the toys. Miss White tells them to take turns. They're having a good time.