Tom did not like doing his homework, because he liked to do some other things1school. And his teacher always2a lot of mistakes(错误) in his homework. 

One day, his Maths teacher3at Tom's homework and saw that he got all his answers right. He was very disappointed（失望）and angry. The next morning before class, he called Tom and said to him, "You got all your homework right this time. Did your father4 you?" Sometimes Tom's father helped him with his homework,5this time he didn't help Tom because he6at home. So Tom answered, "No, Sir. He was busy last night, so I7to do it by myself. "