短文改错（共10小题；每小题1分，满分10分）
假定英语课上老师要求同桌之间交换修改作文，请您修改你同桌写的以下作文。文中共有10处语文错误，每句中最多有两处。每处错误仅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：把多余的词用斜钱（\）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 parents and I went to the park on last Sunday. There were lots of visitors stood in front of the ticket window. We waited for a long time and buy three tickets. In the Tiger Mountain of the park，I was too eager to see the fierce frightened animals that I quickened my steps through the crowd. Unfortunate，I got separated from my parents. I had hard time looking for him，but I had no luck. Wandering in the park，I felt alone without any companions. Worse still，I had no money，so I had to walk home，covered as much as 5 kilometers.