B
Great changes have taken place in our lives in the last century. Here are some examples:
Firstly, people were not able to travel such a long distance in such a short time in the past. Planes were not very popular at that time becausetheyused to be a very expensive way to travel. Nowadays, we have fast and comfortable cars, and more and more people can travel by plane.
Secondly, in the past, people had to work much harder because they did not have the tools that we have today. Today, machines do most of the difficult and dangerous work.
Thirdly, the living conditions in the past were not as good as they are now. There were no bathrooms or running water in many houses, and many people couldn't buy the things like refrigerators, TV sets or washing machines. Now, most families have several of these things. And many families have computers, cars and so on.
Finally, nowadays, more and more people have the chance to get a good education. In the past, there were fewer schools andqualityof education was much poorer. Now people can also study on the Internet at home.
The development of science and technology in the world is amazing(令人惊异的). Life now is much faster and busier than it used to be. And we are still creating(创造) new things to make our lives better and easier.
