Writing prompt: My Life in the Future

Student essay:
With the development of science and technology, our lives have changed a lot in the past century.
Many things that wouldn't happen before have come into reality now. Therefore, our lives will change as well in the future. Our pace of life will be greatly accelerated, because we will help many machines to finish our work. Many things can be done autonomously. Therefore, people will have more time for fun. People have more time to play. Space shuttle can bring people to planets far from the earth. Human beings may live in other planets. Besides, our environment will be much better than now, because some effective measures are taken to protect the environment. In the future, there will be more and more kinds of food for us to choose. They will be more delicious and healthy than they are now.
They will not be expensive. Every one of us can afford to pay.
Future life will be better than it is now, I believe that the future of the world will be full of happiness.

Corrected essay:
With the development of science and technology, our lives have changed a lot in the past century.
Many things that wouldn't happen before have come into reality now. Therefore, our lives will change as well in the future. Our pace of life will be greatly accelerated, because we will have many machines to finish our work. Many things can be done autonomously. Therefore, people will have more time for fun. People will have more time to play. Space shuttles can bring people to planets far from the earth. Human beings may live in other planets. Besides, our environment will be much better than now, because some effective measures will be taken to protect the environment. In the future, there will be more and more kinds of food for us to choose. They will be more delicious and healthier than they are now.
They will not be expensive. Every one of us can afford them.
Future life will be better than it is now. I believe that the future of the world will be full of happiness.