Question

Read the following text about printing presses. Choose the correct verb from the box and conjugate it in the present perfect or the past perfect, depending on the context.

Printing Press
Printed materials are part of our daily life; newspapers, magazines, and books are just some examples. The printing press is a machine used for mass production of these printed elements.
This machine ________________________________ one of the most significant inventions.
Before it appeared, monks ________________________ books by hand so just a few people ____________________to access information. Only very rich families were lucky enough to have a book, which was usually the Bible.
The ancient Chinese used pieces of wood with symbols and drawings to make books. Around the beginning of 1440, a German man called Gutenberg, who ________________________in basic forms of printing, started experimenting with improving the process and finally discovered that using metal instead of wood and blocks with many words could allow people to reproduce texts in great quantity. The printing press is one of the inventions that _________________ great impact in the world. After books could be printed in mass quantities, knowledge became available for most people and the first libraries were founded. Since then we all ___________________ a book.

Estas son las palabras:
Become
Work
Be able
Have
Write
Study
Buy
Has

¡Ayuda por favor!

Answer 1

Respuesta:

convert

wrote

bought

had

they were studying

Answer 2

Respuesta:

has become

had written

had because

had worked

has had

have bought