It was a Sunday afternoon.John was sitting at the deskdoing his homework.He was so careful that he didn't see his good¡¡friend Jack was standing out of the window.When Jack knocked at the windowJohn noticed Jack.Jack waved his hand and asked John to play football with him.John wanted to stop to go outbut he looked at his homework and thought for a moment.At lasthe refused Jack's invite.He said"Jackthank you.But I should finish my homework first.My mother has warned me about my homework.AnywayI will play with you some time next week.Thank you all the same.Then he carried on with his homework.¡¡¡¡How nice the boy was!