---Look! Why are there so many people?---There are some policemen. I think there must be a traffic accident _____in the street.
—________ is that boy? —He’s my friend.
—Is this your bag? —_________.
Look ____ Ann and Julia. They are sisters. They look ____, and they look ____ their mom.
— What are those? —_________ are flowers.
—Do you have two_________? —Yes ,I do.