— Look! The girl __________ long hair is building a snowman. Is she Sandy? — It __________ be her. I’m not sure.
--Is this a ring? --__________.
—It’s sunny today. How about going riding? — ________
—I’m poor at Maths. So I’m sad all day. —________. If you work hard, you will learn it well.
Mr Wu is standing _________ the classroom. There is a teacher’s desk_________ him.
—__________ he________ late for school this morning? —Yes, I think so.