With internet, we can shop online, it is a very convenient and fun way to buy stuff on-line, with just a click of the button, the next moment you know, your order is delivered right at your door.
By signing up on a social network like facebook, twitter, and wechat, which is so popular in China, you can get to know more people. By sending text messages to your friends and family members whenever you want to, I think internet has brought people closer than ever, it makes communication so instant.
Describe one of the most important inventions in recent 100 years. Explain why it is so important. Your explanation should include specific examples and details.