Here’s the reordered sequence of sentences:

1. Children like the Mid-Autumn Festival because they were given many sweets and toys.
2. If you write more carefully, you will make fewer mistakes.
3. In Viet Nam, you should wait for the eldest person to sit down before you sit down.
4. The Giong festival - Saint Giong, our traditional hero, is held every year to commemorate.
5. Thanks to technology, we can now preserve our culture for the future generations.