英语高手帮帮忙，找一下，下面短文中的错误，并改正

下面标了数字的就是我改的。（不好意思，有两处没找到）

Miss Yang 1、 worked in 2、 a school library.One morning she worked at her desk when a boy 3、was coming in.
"I'm very sorry,Miss Yang.I 4、 borrowed a book from the library two weeks ago .But I 5、 couldn't find it. I think I 6、have lost it. "
"Oh,dear!"said Miss Yang."Did you 7、look for it everywhere ?" "Yes ,but I can't find it 8、 anywhere ."
"What a pity! I'm afraid if you've lost it ,you must pay for it . "said Miss Yang

第1行：works in the library.. is workingat at the
第3行：borrowed
第5行：anywhere

第1行work-works \ worked at-was working at\
第3行去掉have
第4行could't find it \have lost
第5行 Did-Have everywhare-anywhere
第6行 you've-you \youmust-you must

Miss Yang works in the school library.One morning she was working at her desk when a boy came in.
"I