Departament Anglés IES Rodrigo Botet Manises
Friday, 1 June 2012
present perfect tercer a
http://www.englishpage.com/verbpage/presentperfect.html
http://www.isabelperez.com/happy/tenses/pres_perfect.htm#inicio
http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/pperf.htm
http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/pperf1.htm
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