A three-book series which has been designed as complementary exercises to any textbook. The student is asked to fill in gaps with a noun, preposition, adverb, adjective or verb. Every page has a different grammar structure which should previously have been explained by the teacher. The series of English Grammar by the same author are recommended to selftaught students / Es una serie de tres libros que han sido diseñados como ejercicios complementarios para cualquier libro de texto. El estudiante debe rellenar los huecos con una preposición, adverbio, nombre, adjetivo o verbo
