阅读下文,从每小题所给的A、B、C、D四个选项中选出最佳选项。
Five years is a short time in the long history of China. But as for the digital world, there are a lot of changes.
Now we can talk easily with friends on Wechat. When shopping, we needn't carry much cash because most of the stores accept Wechat Pay and Alipay. And online shopping becomes a part of our life. For example, we can buy train and plane tickets on different apps in a minute. If we want to go somewhere, it is easy to find a Mobike as well as a sharing car on the street.
We may not realize how these changes decide our life, but we never stopped and will not stop moving forward. China decided to set up the Xiongan New Area in Hebei Province on April 1st, 2017. It will be a smart city in China in the future. What's more, robots will play an important role in looking after the old people in five years. In an old people's home of Hangzhou, the robots called Ah Tie work quite well.
Thanks to the developing digital world, our life is becoming better and better.