根据上下文意思补全短文，每空一词。
On Sunday morning, Bruce goes out         a picnic       his classmates. They take some food there. Diana wants Bruce      sing a song with her,        he has no time. He        to cook. Frank and Clark       like to fly a kite, but they       to bring it. Wendy is a nice girl. She        water for them.       about Helen? She calls their teacher, Miss Li. She asks       to come here.