假如英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。
增加：在缺詞處加一個漏詞符號（∧），并在其下面寫出該加的詞。
刪除：把多余的詞用斜線（\）劃掉。
修改：在錯的詞下面劃一橫線，并在該詞下面寫出修改后的詞。
注意：1.每處錯誤及其修改均僅限一詞；
2.只允許修改10處，多者（從第11處起）不計分。
    As the summer holiday came，I felt excited because my mother has found a job in a printing shop for myself.This was my first job and it was good chance for me to gain experience.But I took it seriously.However，the boss let me do the cleaning in the first several day.I felt disappointedly at first but cheered up soon.I learned what to do the printing work while watch others using the machine.I learned very quickly and the boss even praised for me.Though I didn't get much salary at last，I was pride of myself.