Here’s a suggestion for filling in the blanks:

1. **volunteer**
2. **hospitals**
3. **donate**
4. **raise**

The completed text would read:

"or paid to do it, but we enjoy it. In our village, most families (2) **volunteer** to do this once a month. We cook and give food to patients in some (3) **hospitals**. My parents also (4) **donate** their blood once or twice a year to help sick people. At the end of each year, people in my village (5) **raise** money for poor and homeless people. We love helping others."