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.