Dưới đây là cụm đúng nối sang cột 3:

1. equip → modern facilities
2. make → a new secondary school
3. invest → money in education
4. upgrade → the traffic system
5. wear → rubber sandals and straw hats
6. found → a big difference
7. increase → people’s income
8. improve → the living standard

Hy vọng giúp ích được cho bạn!