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，每处错误仅涉及一个单词的增加、删改或修改。

增加：在缺词处加一个漏字符号（Λ），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。

    Recently, we've learned the news what our English teacher is retiring next month. Heard the news, we felt really down and couldn't help thought of our days together. In our eyes, she is not only a teacher, but also one of our closely friends. During the past three years, we had all grown into hard-working and active learners under her guidance. She has taught us a lot of English knowledges and how be a good citizen. Whenever we had problems, she was always the one we were turned to for advice and help.

    We wish her good lucky and happiness in his life after retirement.