1. It is important (eat) well. 2. It (be) very cold today. You should wear your warm clothes when you (go) out to prevent cold. 3. Do morning exercise every day and you’ll (feel) better. 4. I have a lot of homework to do this evening, so I (not have) time to watch the football match. 5. (Eat) junk food and inactivity (be) the main causes of obesity. 6. I (have) a headache and I need to rest more. 7. I (have) a toothache so I (have to/ see) the dentist. 8. I have to take medicines because I (be) sick. 9. Japanese (eat) more fish instead of meat, so they (stay) more healthy. 10. When you (have) a fever, you (should/ drink) more water and rest more. 11. A healthy diet (help) us feel healthier. 12. Watching TV much (hurt) your eyes.