短文改错。
假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10 处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号(∧)，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，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．
It was my birthday last Friday. I invite some friends to have dinner with me m one ot my favorite
restaurants. It was complete full when we went in, so we had to wait. Luckily, after what seemed ten
minutes, a group of tourist at a comer table got up and left off. As we sat down at the table, I noticed
a larger brown envelope on one of the chairs. I picked up. It felt very heavy. Probably it were full of
important papers. I handed the envelope to one of the waiters. They hurried down the street after the
tourists but managed to catch up with them before they were disappeared.
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