下面短文中有10处语法错误。请在有错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧）,并在其下面写上该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
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11处起）不计分。
One Monday afternoon, we were playing the basketball on the playground while I suddenly slipped and fell over. On seeing that, all my classmates rushed to me. Under the help of several other students, Li Xiang, one of my best friend, put me on his back and head for the clinic immediately. It turned out that my right ankle got hurt badly but I had to be sent to hospital. He did leave until the ambulance arrived. The following day, he came to see me. To my greatly relief, he brought textbooks with them and helped me with my lessons. It was a great pleasure to have such a devoting friend.
