Polly and Sara are in the same class.They are very good friends. One day ,Polly wanted to invite Sara to dinner on Sunday. But Sara did not know the way, so she called Polly to ask her how to get to Polly’s house. “How can Iget to your house?”Sara asked. “It’s easy.You can take the No.4 bus. Afte r you get off at Red Road,cross it and take the first turning on the left.Walk along the road for about five minutes,and then you ’ ll see a big tree. Go straight on for about a hundred meters. And you will see a big red house. This is not my home. Go past the big house about four hundred meters,and you ’ ll see a small yellow house beside a little tree. Then you can open the door with your foot, ” says Polly happily. “ With my foot? ” asks Sara. “ Why ? I will not do things like that. ” “ Well. You won ’ t come to my house empty-handed( 空手地 ) , will you? ” answers Polly.