13.聽第二段材料,回答第9至11小題. 9.What does the girl do? A.A teacher. B.A student. C.A worker. 10.When does the girl have classes? A.From Monday to Friday. B.From Friday to Monday. C.On weekends. 11.What does the girl often do on weekends? A.Chats on the internet. B.Does homework. C.Has classes.