в библиотеке много

there are many … in the library

→ в
phrase Rare #53,822
there are many … in the library Followed by a noun naming what there are many of.
RU: В библиотеке много журналов.
EN: There are many magazines in the library.

У нас в библиотеке много английских книг.

We have many English books in our library.

В библиотеке много студентов.

There are many students in the library.

У нас в библиотеке много детских книг.

We have a lot of children's books in our library.