III. Fill in each blank with a suitable word.
1. My dad told me that only robots__________ work in factories in the future.
2. Chester Greenwood was an American__________ who invented the earmuffs.
3. Modern technology has brought many benefits__________ society.
4. A__________ car is a type of personal air vehicle or roadable aircraft.
5. Cosmonaut Yuri Gagarin becomes the first human being to travel into .
6. We’re going to Mars to__________ out if there is life there.
7. The first working__________ engine was invented by James Watt.
8. While still a small child, John was very fond__________ creating new things.
9. A scientist__________ studies chemistry is a chemist.
10. Future home will take advantages of robots to do__________ such as cleaning,cooking and washing.