题目：
短文改错。
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：在错的词下画一横线，并在该词下面写上修改后的词
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。
All Senior 3 students of Yuyao High School are to visit Zhejiang University after two days.
According to Mr. Wang, headmaster of this school, the activity had been held once a year since
2006.
Except the students, some of their teachers will also take part in, and they will set out at about
7 o’clock and returning at about 4 pm. In the morning, they will visit the new campus of Zhejiang
University. In the afternoon, they will have a face-to-face conversation with some freshmen of the
university who were just graduated from Yuyao High School.
As is believed that this activity will help the students having a good knowledge of campus life in
advance, make them work hard to achieve our dream in the near future.
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答案：
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