Chia động từ trong ngoài

Chia động từ 
1. It is very hot outside. Please (wear) ................ a sun hat when you go out.
2. Do more exercise and you (feel) ................. healthier.
3. I don't want (be) ............ tired tomorrow so I go to bed early. 
4. Nowadays, I don't feel well. I often ( feel) ........... sichk and weak. 
5. People who (smile) ................ more are happier and they live longer.