[填空题]One day, Isaac Newton, the great British (11) , asked a friend to have dinner with him. Dinner was ready, but Newton had not (12) his study. His friend sat down and waited for him. After waiting for quite a good while, he decided that Newton must have been so deep in some (13) that he had forgotten all about his dinner. He (14) began-eating dinner without waiting for Newton and helped himself to the chicken on the table. When he had finished, he thought he would (15) on his friend. He put all the chicken bones back on the dish and covered them properly. Then he quietly left Newton’s house.One day, Isaac Newton, the great British (11) , asked a friend to have dinner with him. Dinner was ready, but Newton had not (12) his study. His friend sat down and waited for him. After waiting for quite a good while, he decided that Newton must have been so deep in some (13) that he had forgotten all about his dinn