文中共有10个语言错误，每句中最多有两处。错误涉及一个单词的增加、删减或修改。
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：在错的词下面画一横线，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。
Behind my apartment, there is used to be a dirty and messy corner. Bits of plastic bags hanged on the trees. Broken bottles were left laying here and there. There was a damaging car in the centre. The whole corner gave off a unpleasant smell. One year ago, we decided to turn it in a beautiful park. Since then, great changes have been taken place in that corner. All the rubbish have been cleared away. Flowers and young trees have planted all over. Now birds come here to sing, children come here to play, and adults come here to enjoy our peaceful life. It has taken on a new look.