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： 在错词下划一横线，并在该词下面写出修改后的词。
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.