Read the passage and choose correct word or phrase that best fits each of the numbered blanks.

BOOKS

Nearly all the discoveries that have been (1)_______ through the ages can be found in books. The invention of the book is one of humankind's (2)_______ achievements, the importance of (3)_______ cannot be overestimated. Books are very adaptable, (4)_______ us with both entertainment and information. The production of books (5)_______ in Ancient Egypt, though not in a form that is recognised to us today. The books read by the Romans, however, have some similarities to the ones we read now. Until the middle of the 15th century, in Europe, all books were written by hand. They were often beautifully illustrated and always rare and expensive. With printing came the possibility of cheap, large-scale publication and distribution of books, making knowledge more widespread and accessible.

 

The invention of the book is one of humankind's greatest achievements, the importance of (3) _______cannot be overestimated.