短文改错。
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。
Two days ago a police car stopped in front of Grandma Bessie's house, and Grandpa Morris get
out. Grandma was very afraid, wondering whether his husband had done something wrong. Then a
politely policeman came over and explained to her, "this elderly gentlemen has told me that he was lost
in the park but couldn't find his way home." "Morris, you scared me," said Grandma, "you have been
going that park for much than 30 years! How could you get lost?" Coming close to Grandma so that the
policeman couldn't hear, Morris said with a low voice "I was just too tiring to walk back".
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