JUNE

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PAST SIMPLE

Practica los verbos regulares en pasado:
http://www.agendaweb.org/exercises/verbs/past-simple-regular
http://www.agendaweb.org/verbs/past-simple-regular/index.html

Practica los verbos irregulares:
http://www.ego4u.com/en/cram-up/grammar/irregular-verbs/exercise?0
http://www.ego4u.com/en/cram-up/grammar/irregular-verbs/exercise?1
http://www.ego4u.com/en/cram-up/grammar/irregular-verbs/exercise?2
http://www.paulmcg.com/esol/saccess/lang_systems/grammar/gr-pre-int/past_simple/verb_forms_spelling.htm

El Past Simple afirmativo
http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?04
http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?02
http://www.perfect-english-grammar.com/irregular-verbs-exercise-1.html
El Past Simple negativo:
http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?05
http://www.perfect-english-grammar.com/past-simple-exercise-4.html
El Past Simple interrogativo
http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?06
http://www.perfect-english-grammar.com/past-simple-exercise-5.html
http://www.perfect-english-grammar.com/past-simple-exercise-6.html
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THE PRESENT PERFECT
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?03
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?04
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?05
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?07
http://www.montsemorales.com/gramatica/PresPerf1-B.htm
http://www.englishbee.net/lessons/inter_exer/present_perfect/close/close.htm
http://www.montsemorales.com/gramatica/PresPerf3pdc.htm
http://www.learnenglish.de/Games/Tenses/PresPerSim.html