题干
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。
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。
Good afternoon, boys and girls! Welcome to the school hall. A robot competition organizing by our school is about to begin with. Ten participants would take part on behalf of your class. The competition includes two parts. In the first part, participants are expected to answer a certain number of question about robots. In the second part, they are supposed to finish some operations following that we request. Now the judges are arriving but all of the participants are in position. It has been a long time when we held such an activity last time. Let’s wait patient for their wonderful performances. I believe we’ll surely have unforgettable afternoon here.
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