Richard is the author of The New Age of Invention, which has just been published. The title of the book suggests that the present day is a new age for inventions,     1     many people might think that the great age of invention is over. Richard thinks it is an interesting point. There     2    (be) golden ages of invention throughout history. There were the four great     3    (invention) in Ancient China. These things     4    (change) the world forever. Then came the great Western inventions. And now, we find     5    (us) in the great new age of technology. In other words, most of the inventions toady are tech-based. In addition, thanks     6     increasing computing power, important advances have been made in medicine and environmental science. New inventions like 3D printers have been used     7    (make) replacement hearts and bone parts.     8    (use) GPS technology, we can travel to different places. What’s more, huge advances in solar technology mean it can be eco-friendly as well. So what is it that inspires us to invent things? In fact, most inventions start with recognising a problem that needs a     9    (solve). Take the wheel in ancient times as an example, which much     10    (late) developed into the car. In terms of a time machine, Richard thinks we still have a long way to go.