选词填空。 worry about, relax, take a big exam, take a long walk, enjoy, lots of, charity, what if, medical research, help with 1. The old man had a million dollars, and he gave it to the _____. 2. If I had a million dollars, I would give it to the _____ to help the poor. 3. _____ everyone else brings a present? 4. You shouldn't _____ what other people are wearing. 5. You should eat _____ fruits. 6. I can't sleep before I _____. 7. If I were you, I would _____ before going to bed. 8. The foods you eat could _____ this problem. 9. That will help you _____. 10. I just don't _____ parties.