第二节 短文改错（共10小题；每小题1.5分，满分15分）
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．每次错误以及其修改均，仅限一词；   
2．只允许修改10处，多者(从第11处起)不计分。
Hi Susan，
I'm sorry that I wasn’t able to return to your bike on time yesterday．I mean to give it back to you before four in the afternoon，and I was held up on my way back．Just before I turned corner of Park Street, I happened to seeing an accident．A little girl was hurt and his mother needed help．So I helped them going to the nearest hospital．I stayed here for one and a half hour and made sure that the girl was right．When I got back, it were already 6 pm. I hope you understand． 
Thank you!  
Li Ling