carnival / Rio I has I famous / the / most / in / the / world.
carnival / Rio I has I famous / the / most / in / the / world.
carnival / Rio I has I famous / the / most / in / the / world.
Đáp án: Rio has the most famous carnival in the world.
Dịch: Rio có lễ hội hóa trang nổi tiếng nhất trên thế giới.