求老师解答：短文改错. 下面短 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

All Senior 3 students of Yuyao High School are to visit Zhejiang University after two
1.in
days.According to Mr.Wang,headmaster of this school,the activity had been held once
2.has
a year since 2006.zxxk
Except the students,some of their teachers will also take part in ∧,and they will set out
3.Besides 4.it
at about 7 o’clock and returning at about 4 pm.In the morning,they will visit the new
5.return
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.
6. 去掉
As is believed that this activity will help the students having a good knowledge of campus
7.It8.have
life in advance, make them work hard to achieve our dream in the near future.
9.making 10.thei