1. You should drink a lot of water every day.

2. Fast foods which children like to eat very much are not good.

3. Gina likes to eat a lot of meat and junk food.

4. Our brain's memory is affected by Alzheimer's disease.

5. Aromatherapy is not as common as acupuncture.

6. Organic food is thought to be just a waste of money.

7. John is believed to have caught this cold from his brother yesterday.

8. His family is said to have reduced the amount of sugar in their diets.

9. It is thought that agriculture chemicals can cause serious illnesses like cancer.

Or: agriculture chemicals are thought to cause serious illnesses like cancer.

10. It was difficult for small organic food companies to compete with these big companies.