假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；2．只允许修改10处，多者（从第11处起）不计分。
    My high school life has made me learn many things. Between them teamwork is the most significantly for me. In fact, I didn't realize its importance after I was elected monitor. In the begin, I did almost all the duties myself, however, others students cared little about class activities. Therefore, I worn out and depressed. Then I turned to my head teacher but he advised me to cooperate with others. Gradually, I realized the strengths of my classmates and managed to have everyone to play a part in class. It is working in teams instead of on my own which has freed me of trouble and make my work more efficient.

下图为我国某特大城市一二三环线之间各种土地利用类型占该区域面积比重示意图。据此回答下列各题。

蜂农为了“追花夺蜜”，往往要不停地迁徙放蜂。读我国东线放蜂线路示意图，图中放蜂路线体现的地域分异规律主要是（   ）

若$M=\left\{3,5,6,8\right\},N=\left\{4,5,7,8\right\}$，则$M\cap N=$（    ）

如图所示的数阵中，用A（m，n）表示第m行的第n个数，依此规律，则A（15，2）=____．