开学初,为了鼓励大家看书,我和班级的图书管理员一起去图书室精挑细选了55本课外书,放到班级的书架上。转眼,一个月过去了,还书的时候,图书管理员突然发现少了两本书。经询问,全班同学都没有人承认拿这两本书。按照常 Beginning of the beginning, in order to encourage everyone to read, I went to the library with the class librarian carefully selected 55 extra-curricular books on the class shelves. An instant later, a month later, when the book was returned, librarians suddenly found two books less. Upon inquiry, no classmate admitted to taking both books. As usual