-Do you know the boy is sitting next to Peter? -Yes,He is Peter’s friend,They are celebrating his birthday.
---Would you mind ______ next to you? --- ____________.
---I don’t think Lily can sing _______ Lucy. ---I disagree. I think Lily can sing ______ Lucy.
---The number of the students in our school is about nine _____. ---I see. ______of them are boys.
---____ skirt is blue.____ is red. Which of them do you prefer? ---______ is OK. I like their styles.
---Do you know ____ boy who can play ______ violin? ---Yeah! He is ___ artist. He also plays ___ football very well.