题目内容：

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限一词;

      2.只允许修改10处，多者（从第11处起）不计分。

Hello everyone. I've got something to tell you, so please listen careful. There is several changes in the timetable for today. You start with English for usual, then business studies and after the break, history and art. Because the changes in the timetable, your business studies lesson this morning won’t be in Room 313. Instead, they will be in Room 303. Now the changes in the after-school activity this week. The debating group will met today. There’s some practice on Thursday—that’s tomorrow—for those of you which want to get into the school team. And on Friday, the music group will meet to prepare for the school performance. Finally, let’s see who is on the duty today. George, it was your turn, right?