At seven forty in the morning, the students are coming into classroom. A girl is opening the windows.

    Some of the students are laughing and talking. Some others  listening to them. Some are reading books. Some are doing (they) homework.

    Miss Zhao is  (sit) behind the teacher's desk. She is writing on the blackboard. Sue Lily are wearing their new dresses today. Ann is cleaning her desk. Mike is helping her. They are all (happily)

    What are Bill and Jim doing? Oh, dear! They are still playing basketball on the playground.