根据句意和提示写出单词。 1. Healthy l_____ is very good for our study and work. 2. Jack's eating habits are pretty bad; he doesn't like v_____ or fruit. 3. Jim e_____ twice a day, so he is very strong. 4. I s_____ go to the beach. It's pretty beautiful. 5. If you eat too much junk food, you'll be u_____.