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。错误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。
An old man whose eyesight was failing comes to stay in a hotel, a bottle of whisky in his hand. On the wall was a fly he took for a nail. The moment he tried to hang the bottle on it, they fell and broke. When the landlady discovered what had been happened, she decided to do him favor. The next morning when he was out, the hotel worker hammered a nail exact where the “fly” had been. Before the old man came back, the smell of the whisky reminded him the accident. Looking at the spot what he thought the “fly” was again, he was so angry that he slapped it with all his strengths. On hearing the loud cry, the landlady rushed in. To her surprise, the poor old man was sitting on the floor with his teeth clenched(咬紧) and the palm of his hand bleed.