Technology（科技）makes our life easier and better than before. Many think it is great. For most people, technology means you can do (much) in less time and have fun while doing it. Here's one example. People ( make) letters with smoke from planes. People can see the letters from the streets, buildings and places far the sky. It's called skywriting. It began in England. In 1922, the (one) words written in the sky over America were "Hello USA". That year skywriting started to be used for advertising. Then it kept popular for a long time. It's difficult (put) a message into the sky. The pilot must count numbers to know when to turn the smoke on and off. wind moves the letters, the pilot should watch their shadows on the ground or their shapes in the sky. If it's a (snow) day, the pilot in the plane can't see the white letters, we can see them in the sky on the ground. People are so (create) to have romantic time! However, for some people, technology is not just for fun. It can change their (life). Most believe tomorrow's technology comes out right side up!
