one day, tim's mathematics teacher looked at his homework and saw that he had got all his sums right. the teacher was very pleased-and rather surprised. he called tim to his desk and said to him, "you got all your homework right this time, tim. what happened? did your father help you?"
一天，蒂姆的数学老师看了他的作业，发现他全做对了。老师很高兴，同时也十分惊讶。他把蒂姆叫到桌前说：“蒂姆，你这次的作业全都做对了，怎么回事？你爸爸帮你做了吗？”
"no, sir. he was too busy last night, so i had to do it all myself," said tim.
“不，先生，我爸爸昨天很忙，我不得不全由自己做了。”