I bought a book
I bought a book here yesterday.
I bought a book.
Compré un libro de cuentos populares.
I bought a book of folk tales.
Pasé por la librería y compré un libro interesante.
I went to the bookstore and bought an interesting book.
Yesterday I bought a book.
Yo compré un libro que será muy interesante.
I bought a book that will be very interesting.
Compré un libro sobre los animales.
I bought a book about animals.