下面短文中有10处语言错误。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. 每句不超过两个错误；
2. 每处错误及其修改均只限一词；
3. 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 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 panions. Worse still, I had no money, so I had to walk home, covered as much as 5 kilometers.去掉on
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(答案→)去掉on
解析：文章介绍作者和父母去动物园玩，却和父母走散，最后只好自己走回家。
【小题1】去掉on，因为last和next…前面不加冠词
【小题2】句意：有很多乘客站在橱窗面前。用现在分词standing做定语修饰visitor
【小题3】句意：我们等了很长时间，买了三张票。和waited并列的动词用bought
【小题4】句意：我是如此渴望看见凶猛吓人的动物以至于我加紧走。用so…that…句型。Too改成so
【小题5】frightened一般修饰人，frightening 一般修饰物
【小题6】Unfortunate,是形容词，一般修饰名词，Unfortunately是副词，修饰这句话
【小题7】词组：have a hard （in） doing费力地找到他们
【小题8】作者在找父母，用them代替his parents
【小题9】句意：没有人陪，我感到孤单。Alone表示“一个人”，lonely是“孤单的”
【小题10】我不得不走回家，走了5公里。covered改成covering是现在分词做伴随状语