PLease complete these exercises, which will be corrected on Thursday. They are just practice exercises and they do not have a score)
Grammar Exlanation: http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/ppvpast.htm
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?04
http://www.agendaweb.org/exercises/verbs/present-perfect-sentences
http://www.english-grammar-lessons.com/presentperfect/exercise4.swf
http://www.englisch-hilfen.de/en/exercises/tenses/simple_past_present_perfect.htm
http://www.perfect-english-grammar.com/past-simple-present-perfect-1.html
(no hay que hacerlos todos, pero hagan lo que mas puedan para ir afianzando este tema para la clase y para los parciales)
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