Once a teacher was asking a student a lot of questions, he was standing in front of the black board but answered none of them. The teacher then decided to ask him very easy questions so that he could get a few right.
Who was Beethoven（贝多芬）？” she asked The student thought for some time and then answered，"a kind of bee No, he was a German musician, "the teacher said. She was getting a little angry now, but she was trying not to show it.
Then she asked，“ Who was the first president（总统） of the united states？”
The student thought for a long time, but he didn't say anything. Then the teacher got very angry and shouted George washington!" The student turned and began to walk back to his seat.
Come back！ the teacher said, I didn't tell you to go."
“Oh, I'm sorry the student said, Didn't you call another student to answer？”