短文改错
英语课上，老师要求同桌同学相互修改作文。假设以下书信为你同桌所写，请你对其进行修改。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。
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。
The Magic Tree House series are among the most popular book series ever writing for children. It tells a story of two kids, Jack and his sister Annie, seem to be very excited about finding a tree house in the woods. A tree house is magic and can transport him to various places and various times in history. It turned out that King Arthur from Camelot needs help. However, Jack’s head librarians, Morgan le Fay, sends him and Annie to help. They end up go to many different places and time periods through history on their adventures, which attract to readers a lot.
The series so far has had over 40 books and is likely to grow.