Answer:
Given that this is an exercise on Cuba, and Spanish words to be used in a specific context, I will give you the answer and if it requires an explanation, a short one.
1. El autor: Ernest Hemingway está asociado con la Habana Vieja. In fact, he wrote "For Whom The Bell Tolls", his most famous work, while travelling between Cuba, Wyoming and the Sun Valley.
2. El Ballet Nacional de Cuba es famoso: por su creatividad y perfección técnica. In fact, the Escuela Nacional de Ballet de Cuba is the largest institution in the world that specializes in the teaching of dancing arts.
3. Los dos cultivos más importantes para la economía cubana son: La caña de azúcar y el tabaco. Especially sugar cane and puros (cigars) are a specialty of Cuba.
4. Los cubanos fabrican: Puros con la planta del tabaco. Puros are cigars and Cuba is the most famous producer of the finest tobacco and cigars in the world.
5. Muchos de los inmigrantes que llegaron a Cuba son de África, Europa, China, y de las: Antillas. This migration from the Greater Antilles took place between the period of 1868 and 1898, and it was labor-related.
6. El disco Buena Vista Social Club ganó un Grammy en: 1997. This musical record was created between the Cuban musician Juan de Marcos González and the American Ry Cooder.