1. Thai people often wear yellow clothing on Monday because yellow is a lucky colour, so they should wear yellow on Monday.
2. Lan wants to maintain his villagers' traditional way of weaving clothes because he is keen on preserving their cultural heritage.
3. It's a good idea to hand bowls with both hands because we should show respect when handling them.
4. We should wait for the host to start eating because it is better to follow their lead.
5. Don't sweep the floor on the first three days of Tet because we shouldn't disturb the luck and good fortune that comes with the new year.
6. My hobby is collecting stamps. My brother's hobby is playing football. My hobby is different from my brother's.
7. I walked in the sun for so long, so I got sunburn. I got sunburn from walking in the sun.
8. How about going out to play football? Let's go out and play football.
9. My mother is interested in going shopping. My mother enjoys going shopping.
10. This car is more expensive than that car. That car is less expensive than this car.