If I was asked to say what was the greatest invention of...
If I was asked to say what was the greatest invention of human beings, I would say the sentence.
![John Banville Quote About Invention, Humans, Sentences: If I Was Asked To...](http://qt.azureedge.net/resources/quotes-images-large/if-i-was-asked-to-say-what-was-the-greatest-invention-of-human-beings-i-would-sa-b2cecd277e6c4520926fe44f8037097a.jpg)
If I was asked to say what was the greatest invention of human beings, I would say the sentence.