viernes, 19 de febrero de 2016

PASSIVE VOICE

http://www.englisch-hilfen.de/en/exercises/active_passive/passive_sentences1.htm

https://www.ego4u.com/en/cram-up/grammar/passive/exercises?simple-present

https://www.ego4u.com/en/cram-up/grammar/passive/exercises?06

http://www.e-grammar.org/passive-voice/test2-exercise4/

http://www.englishexercises.net/yypassive1.html


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