It's seven fifty in the morning . The students are coming into the classroom. A boy is opening the window. Some of the students are laughing and talking. Some others are laughing to them. Some are reading books.Some are doing their homework. Miss White is standing behind the teacher's desk. She is writing on the blackboard. Lucy and Lily are wearing their new dresses today. Mary is cleaning her desk. Jim is helping her. They all  look happy. What are John and Tom doing? Oh, dear! They are still playing football on the playground. Which of the following is not right?
Mary is cleaning the teacher's desk Jim is helping Mary. John and Tom are still playing football. The students all look happy in the morning.