-
UNIT 1
Grammar past simple of the verb "to be" -
UNIT 1
GRAMMAR Past simple ( regular verbs) -
UNIT 2
GRAMMAR past simple (irregular verbs)
For irregular verbs, we cannot add-ed to form the past simple -
UNIT 2
GRAMMAR irregular plurals -
UNIT 3
GRAMMAR count and non-count nouns -
UNIT 3
GRAMMAR collective nouns -
UNIT 4
GRAMMAR to-infinitive -
UNIT 4
GRAMMAR adverbs of manner -
UNIT 5
GRAMMAR quetions words -
UNIT 5
GRAMMAR past progressive -
UNIT 6
GRAMMAR present perfect simple -
UNIT 6
GRAMMAR present perfect simple
negative sentences and questions -
UNIT 7
GRAMMAR time connectives -
UNIT 7
GRAMMAR could -
UNIT 8
GRAMMAR past simple and present perfect simple -
UNIT 8
GRAMMAR used to -
UNIT 9
GRAMMAR conjunctions-and/but/or -
UNIT 9
GRAMMAR comaparatives and superlatives -
Bibliografia
ACTIVE ENGLISH
Nigel Reid
Gabriela G. Rujana
Julieta Nuñez
Publicado 2013
