用括号中所给词的适当形式填空。 1. I brush my _ ___ (tooth) before I go to bed every day. 2. Don't eat too much or too little. You need a _______ (balance) diet. 3. You shouldn't __ __ (believe) everything in the newspaper, on TV or the Internet. 4. I'm sorry __ __ (hear) that you didn't pass the English exam. 5. I hope you'll feel _ (good) soon. 6. It's important ___ _ (stay) healthy. 7. I'm tired and have a _ (headache) these days. 8. Christmas Day is a ____ (tradition) festival for westerners. 9. _ ___ (eat) green vegetables is good for your body. 10. Chinese medicine is now popular in many __ __ (west) countries.