Curso Intensivo De Espanol Ejercicios Practicos [Spanish]

As a 49 years old student of Spanish, who is in constant business and social contact with native speakers, I need a quick and practical exercise book. In this collection of three books, with key, I found all I needed in terms of words usage (which can be tricky in Spanish), verbal tense utilization and everyday sentences plus questions and standard answers one is sure to encounter sooner or later. Some special expressions that add zest and personality to the language are present in the exercises and I'd like to exemplify with the famous "vale", "oye" or "viva" that one can hear as soon as out of the airport in Madrid. I use these books with my private teacher both as an exercise source and as read aloud material, but one can go through them alone as well.