TY  - BOOK
AU  - Murphy,Raymond
TI  - Essential grammar in use: a self-study reference and practice book for elementary students of english with answers 
SN  - 9780521675437
U1  - 425 
PY  - 2007///
CY  - Reino Unido
PB  - Cambridge University Press
KW  - Inglés - Gramática
N1  - Incluye ejercicios adicionales, guía de estudio e índice; 1. Present -- 2. Past -- 3. Present perfect -- 4. Passive -- 5. Verb forms -- 6. Future -- 7. Modals, imperative etc. -- 8. There and it -- 9. Auxiliary verbs -- 10. Questions -- 11. Reported speech -- 12. -ing and to -- 13. Go, get, do, make and have -- 14. Pronouns and possessive
ER  -