假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅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。
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。
Last week, our class have a discussion about the celebrations to welcoming the former teachers and students. We wanted to organize a tea party in the classroom for all the former teachers or students. This would be an wonderful opportunity for them to meet new friends and talk together. We could find old photos for the school, teachers and students and make a display which we could put them up in the classroom. The visitors could then look around at the photo as they were enjoying their tea. This activity would popular because it would remind the visitors of the days when they spent together.