A teacher was asking a student lots of questions, but thestudent  1  answer any of them. The teacher then decided  2  him a very easy question so that he could get 3 right.“Who was Beethoven?”she asked. The student answered, “He was American,” after he  4.“ 5. He was a German musician,”the teacher said. She  6a little angry now, but she was trying 7  it. Then she asked,“Who wasthe first president（总统） of the USA?”The student thought 8  a long time, but he didn't say  9.Then the teacher got very angry and shouted,“George Washington!”The student got up and  10  to walk towards the door.“Come back!”the teacher said，“I didn't let you go.”“Oh, I'm sorry,”the student said,“I thought you called the next student.”