Lesson 5 
Tom: Kick the ball, Sandy! 
Sandy: All right, Tom. 
Tom: Look ,Sandy! 
Mr Crisp: Oh! 
Sandy: Sorry, Mr Crisp. 
Mr Crisp: It's all right. Sandy. 
Mr Crisp: Whose is this ball? 
Mr Crisp: Is this your ball, Tom? 
Tom: No, it isn't ,sir. 
Mr Crisp: Is this your ball, Sandy? 
Sandy: Yes, it is, sir.