最近，你校参加了某英文报纸正在开展的题为“中学生课堂注意力”的专栏讨论，并请你代表学校给该英文报纸投稿。下面的表格为你校的调查结果(表中数据为学生人数百分比)。请你根据所提供的信息做简要说明，并根据提示给出改善的建议。(字数140).

2．只允许修改10处，多者(从第11处起)不计分。

I went to the Summer Palace on last week．At the gate I happened to meet some America tourists．I greeted him in English and then we began to chat．I got to know that they were college students travel in China．They were busy with taking pictures and were much impressed with the changes had taken place in the past few years．After which, we went boating on a lake and had a good time．We exchanged our email address so that we could write to each other on the future．They thanked me again and again．I was very glad to have a chance to practising my oral English

　 (注意：在试题卷上作答无效)

文中共有10处错误，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： 在缺词处加上一个漏词符号(∧)，并在此符号下面写出该加的词。

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．每处错误及修改均仅限一词；