Question

books were written down befpre the invention of the _________ machine..

Answer 1

Books were written down before the invention of the printing machine.

Answer 2

Hello!!

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The answer ,you are looking for may be ,"printing"/"Typewriter".

such as, Books were written down before the invention of the printing machine/Typewriter.

Since,In ancient time books were written by hand which was more time taking and expensive.

And on those days printing machines/ Typewriter weren't available.

so, Your answer is , "PRINTING/Typewriter".

It would be like:-
Books were written before the invention of printing machine/Typewriter.

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