My dentist had just pulled out of my teeth and had told me to rest for a while. I tried to say anything , my mouth was full of cotton wool. He knew I collected match boxes and asked me that my collection was growing. He then asked me about my brother and whether I like my the new job in London. I either nodded or made strange noises in answer for the questions. Meanwhile,my tongue was search out the hole where the tooth had once been. Suddenly I felt very worriedly, but still could not say anything. When the dentist at last removed the cotton wool into my mouth, I was able to tell him that he had pulled out the wrong teeth. 来源：

55. Children often show ___(好奇心) about everything that they have never seen___________________

54.He is an expert on solar ___(系统) ___________________

53. Chirldren should not be allowed to watch____(暴力的) movies___________________

52. That ____(使想起) me of a short story by Luxun___________________

51.The ____(庆祝) of christmas is a custom___________________

50..He moved aside for her with a polite____(鞠躬) ___________________

49.It takes time and____(耐心) to photograph wildlife___________________

48.If you have no idea about it, ___(查阅)a dictionary__________________

47.A___(平衡的)diet gives an athlete the right amount of calories___________________