【正确答案】 1、form a bond/united    

【答案解析】[定位] 由题干关键词story of Mirabelle和a common use可将答案定位至第三个标题下第二段第一句。[解析] This conversation allows all three people involved to form a bond—in general，people who are united against a common hardship or enemy become closer to each other．根据题干的意义和语法要求，句中的form a bond或united都可以作为答案。