用英语写一个笑话顺便翻译

One day after school the teacher said to his students, "
Tomorrow morning, if any one of you can answer my first
question, I will permit him or her to go home earlier." The
next day, when the teacher came into the classroom, he
found t he blackboard daubed. He was ver y angry and
asked, "Who did it? Please stand up!" "It's me," said Bob,
"Now, I can go home. Good-bye, Sir."
一天,放学以后,老师对他的学生们说："明天上午,如
果你们当中的任何一个同学能首先回答我的 问题,我就
准许他或她最先回家."第二天,老师走进教室时发现黑
板被涂得乱七八糟,他非常生气的问："谁涂的?请站起
来!"鲍勃说："先生,是我,现在我可以回家了,再见!"