81. One possible version:

 Save Food And Eat Healthily

Yue yang government has called on the citizens to save food and eat healthily so that we can enjoy our happy life. We middle school students should do something for it.

To save food, we shouldn’t waste any of our food. We should eat up all the food. We shouldn’t order the food more than we can eat while dining out, because many people in the world don’t have enough to eat. To eat healthily, we shouldn’t eat junk food but healthy food. It’s good for our health to eat a balanced diet. We’d better not eat in small restaurants. The food and the oil they use are not clean or healthy enough. We’d better eat at school or at home if we have time.