=>
3. People wanted to see the soccer match, so they started leaving home very early in the morning./ People started leaving home very early because they wanted to see the soccer match.
4. They didn't want to get home late, so they hired a minibus./ They hired a minibus because they didn't want to get home late.
5. Most tourists didn't bring their meals with them, so they ate at the foodstalls along the roads./ Most tourists ate at the foodstalls along the roads because they didn't bring their meals with them.
6. We didn't like the food, so we walked out of the restaurant./ Because we didn't like the food, we walked out of the restaurant.
7. The play was very boring, so she went to bed very early./ Because the play was very boring, she went to bed very early.
8. It was very cold last night, so we decided to stay in./ Because it was very cold last night, we decided to stay in.
-> because S V : bởi vì
so : vì vậy, vậy nên