TY - BOOK AU - Fuchs,Marjorie AU - Bonner,Margaret TI - Focus on grammar 3. An integrated skills approach SN - 9780131899858 U1 - 425 PY - 2006/// CY - New York (Estados Unidos) PB - Addison - Wesley Publishing Company KW - INGLES TECNICO KW - INGLES N1 - Incluye gráficos; Present progressive and simple present.-- Imperative.-- Simple past.-- Past progressive and simple past.-- Used to.-- Future.-- Future time caluses.-- Wh-questions: Subject and object ER -