题目

The students at Sandy’s high school were badly shaken by the news that a classmate had  36 himself. The suicide note read: “It’s hard to  37 when nobody cares if you die.” Glen, a teacher, realized this was a  38 moment about the importance of making people feel 39 . He asked his class to imagine they were about to  40  and to write a note “telling someone how and why you  41 him or her.” Sandy, who had a  42  relationship with her mother, decided to write her  43 . Her letter read: “We’ve had some  44 times and I haven’t always been a very good 45 ,but I k甲、乙、丙、丁四支足球队在世界杯预选赛中的进球数分别为：9、9、11、7，则这组数据的：①众数为_      ；②中位数为_      ．