假如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—横线, 并在该词下面写出修改后的词。
注意: 每处错误及其修改均仅限一词。
There are many different signs in the public. They tell you what to do or what not to do in a place. Do you know what they exact mean? For example, if you go to see a film, you should enter the cinema at the ENTRANCE and leave for the EXIT. You will either find NO SMOKING signs in many cinemas. If you visit a museum, don’t take some photos inside the halls. You are not allowed. You will find NO PHOTOS signs in many museum. When you drive a car, don’t park in a street without a NO PARKING sign. Making sure you understood the signs and you won’t get into any trouble.