单选题 Tom: You are playing guitar well. Can you read music?
Charles: No, I don't. I just listen to songs on the radio and then play them until they sound right.
Tom: ______.
Charles: No, really.

【正确答案】 D
【答案解析】[注释] Tom对Charles不识乐谱也能弹得一手好吉他感到难以置信，这种情况下一般说You're kidding或You're joking，意思是：“你在开玩笑吧!”或“这不是真的!”。其他几个选项分别表示“撒谎”、“吹嘘”、“欺骗”，都不恰当。