题目

补全对话（共5小题，每小题1分，满分5分） A; Hi. You look excited. ___56______? B: It is said that a singing contest will be held in our school soon. And I think it a good chance to exercise my singing talents. A: ___57___? B: A MP3 player will be given as a reward to the first prize winner.A: Are you going to take part in it?B: Sure. __58_____ A: Really? But I don’t think you’ve practiced enough.l B: I’m going to. I bet I can get the first prize.A: __59_____. I think you need to have a music teacher to help you. B: I don’t think it necessary.____60_____ A.By the观察下列等式，，，根据上述规律，（ ）A．B．C．D．