Read the following passage and find out the 10 mistakes.
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：在错的词下划一横线，并在该词的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11处）不记分。
May I have you attention please? I have a little things to tell you. When you have a class here in the language lab, please be here a little early. Change your shoes before enter the lab. Don't bring anything here except your text books. When you are into, please don't touch these machine without permission. Always do as the teacher tell you to. In class you should only speak the English, not Chinese. Recorders can be used to making a copy of the listening materials. When class over, turn off your machines and leave the lab one by one.