Here are suggestions for filling in the blanks:

1. At the **busiest time**, my brother always helps my parents load the rice onto the truck and drives it home.
2. I often help my parents dry the **rice** in the yard in front of my house.
3. Some farmers in my village still use **buffalo** to transport rice home.
4. He usually goes **herding** the buffaloes with other boys in his village.
5. My pen pal says he would like to visit my **countryside** at harvest time to see what farmers do.
6. My friend has never ridden a **buffalo-drawn cart**, so he would like to try one.
7. Harvest time is the **fantastic** of the year in the countryside.
8. Our garden is **colorful** in spring when almost flowers bloom.
9. I like looking at the stars on starry nights. It's **noisier**.
10. My uncle lives in the city. He says it’s **noisier** than my village.

Feel free to adjust if you have specific preferences!