第四部分 第一节短文改错（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，请你修改同桌的以下作文。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。
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。
Today we have a short trip to Nanshan Park. We set out by the school bus at 7:20 a.m. The weather was pleasant and all of us were exciting. After two hours ride , we arrived there at nine thirty. Then we began our program as soon we got off the bus. We played games in the forest very happy. At 12:30, we had the lunch in a restaurant. In the afternoon we walked to the wild animal park where we saw varieties animals. We enjoyed ourselves very much. Time past quickly and we had to leave. It was half past six when they got back safely.