用括号内所给词的适当形式填空。
1. I think everyone has two ________ (foot).
2. The old man has a serious ________(ill).
3. Mr Chen is often ________ (stress) out.
4. It's easy to stay _______ (health).
5. You should drink _______(lot) of water.
6. I'm not feeling ________ (good).
7. Chinese Kung fu is popular in many ________ (west) countries.
8. I have a ________ (肚子痛).
9. Although I study hard, my putonghua isn't ________ (进步).
10. It's important to eat a ________ (平衡的) diet.
