短文改错（共10小题，每小题1分，满分10分）
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：在缺词处加一个漏词符号(∧)，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。
John was visiting he 90-year-old grandpa, who lived in the country. In the first morning of the visit, John grandpa prepared a breakfast of bacon and eggs. John noticed some dirt on his plate, and asks, “Are these plate clean?” His grandpa replied, “They’re as cleaner as cold water can get them. Just go ahead and finish your meal.” For lunch, Grandpa made hamburgers. Again, John has found the plates were dirty, but he asked the same question. Without looking up, his grandpa gave same answer. Later, as John was left, his grandpa’s dog started to growl(咆哮), and wouldn’t let him pass. Grandpa shouted at the dog, “Cold Water, go lie down!”