短文改错 急!There is a library in our school.Its behind our class

短文改错 急!
There is a library in our school.Its behind our classroom.It is on the first floor.It is not big and it is very nice. there are a lots of books in the library.some are in Chinese and some are in English,and the rest is in many different and kind of languages.I like reading very much.my classmates and i often go there to lend books.the librarian is very kind with us.she works very hard.we all say that she is a well moman.there is a very big reading room in our library,too.everyday many students go there and do some reading.