The key answer of exercise 9

a) - b)

1. People could buy things online in 1994. The first thing they could buy was pizza.
2. In the 1990s, rich people couldn’t buy trips into space. But in 2001 Dennis Tito paid to visit the International Space Station.
3. Today you can buy eggs from vending machines in Japan. And you can also buy flowers, fruit and umbrellas and many other things.
4. You can buy a bottle of rainwater for $11 these days. The water comes from the sky, into a bottle and then you drink it. It never touches the ground.
5. You can’t use euros in Norway and Sweden. They use the Norwegian Krone and the Swedish Krona.
6. People could buy things from machines in 1890. The first vending machines were in London in the 1880s and they sold postcards.
7. In the 1960s, you couldn’t buy petrol at supermarkets. They started to sell petrol in the 1970s.
8. You can’t buy clothes online from all the big fashion companies. For example, Chanel don’t sell their clothes online because they believe customers need to try everything on.