19. Thanh and his twin brother are always together. They are ……………………………….​(separate) 20. His ideas ………………………………little from those of his father.​​​​(different) 21. Peter felt quite lonely in the new school because he has no friends. He was ………  (friend) 22. My father works for an …………………………………..bank in HCM city.​​​(nation) 23. Our country enjoys ……………………………….. climate.​​​​​(tropics) 24. By the age of eighteen, he was completely ……………………………………of his parents.​(depend) 25. There are some ……………………………buildings in this town.​​​​