There is a teacher’s desk _______ of the classroom. Mr. Liu is standing _______ of it.
—Our classroome________very day.
—My mum often________ me do my lessons after school.
—Listen!She ________an English song.
——Another cup of tea? —No, thanks. I________leave now. Lucy is waiting for me.
—I play pingpong ________than you but you run faster than I.