To help re-build the library, Congress bought the books of President Thomas Jefferson. Mr. Jefferson’s collection included 7,000 books in seven languages.

      (S8)______________________________________________________________________. Today, three buildings hold the library’s collection.

      (S9)______________________________________________________________________. It buys some of its books and gets others as gifts. It also gets materials through its copyright office. (S10) __________________________________________________________________. This means the Library of Congress receives almost everything that is published in the United States.