题目

I was at the Indian grocery store with my cart totally full to check out. There was an African American man in his   1．  (sixty) behind me. I told him he could go before me   2． he had just two items in his hand, and he was all smiles and added, as if 3．  (tease)me, “Thanks! Why don’t you pay for my stuff too,” and laughed. I felt a little  4．  (embarrass) and thought that the man had a wonderful sense of humor. I told the lady at the check out not  5．  (change)him. I said I would pay for him. He said, “No, no, no, I was just kidding.” And I  6．  (reply)如图的四幅用箭头标明闭合电路的一部分导体在磁场中运动的方向，符号“⊕”表示电流的方向垂直于纸面向里，符号“⊙”表示电流的方向垂直于纸面向外，图中表示的电磁感应现象，有一幅是错误的，则错误的是（　　）A．B．C．D．