Los solucionarios son una herramienta que permite al estudiante contrastar sus respuestas en casa. English 1 Answer key: Unit 1 y 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6 English 2 Answer key: Unit 1 y 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6 English 3 Answer key: Unit 1 Answer key: Unit 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6 English 4 Answer key: Unit 1 Answer key: Unit 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6 English 5 Answer key: Unit 1 Answer key: Unit 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6 English 6 Answer key: Unit 1 Answer key: Unit 2 Answer key: Unit 3 Answer key: Unit 4 Answer key: Unit 5 Answer key: Unit 6