https://www.youtube.com/watch?v=QYa_DmgBUAk

 

https://www.youtube.com/watch?v=LKCtzuvBZPc&t=62s

 

https://www.youtube.com/watch?v=3bwfo9aD5A8&t=75s

 

https://www.youtube.com/watch?v=f8crkDC2faI

 

https://es.liveworksheets.com/pm1777113ss

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://www.curso-ingles.com/aprender/cursos/nivel-avanzado/verb-tenses-present-perfect/present-perfect

 

http://www.esl-

classroom.com/grammar/presperf1.html

 

http://www2.hkedcity.net/citizen_files/aa/dz/so6009/public_html/mc-prsesentperfect.htm

 

https://agendaweb.org/verbs/present_perfect-exercises.html

 

http://www.grammar.cl/Games/Past_Participles.htm

 

https://www.proprofs.com/quiz-school/story.php?title=present-perfect_42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://www.englishpage.com/verbpage/presentperfect.html

 

http://www.curso-ingles.com/aprender/cursos/nivel-avanzado/verb-tenses-present-perfect/present-perfect

 

http://www.agendaweb.org/verbs/present_perfect-exercises.html

 

https://www.curso-ingles.com/aprender/cursos/nivel-basico/prepositions/prepositions-of-place

 

https://www.abaenglish.com/es/preposiciones-ingles/

 

https://agendaweb.org/grammar/prepositions-exercises.html

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://ingles.about.com/od/gramatica/a/Partsofspeech.htm

 

http://www.englisch-hilfen.de/en/word_formation/parts_of_speech.htm

 

http://www.myenglishpages.com/site_php_files/grammar-exercise-parts-of-speech.php

 

https://www.englishclub.com/grammar/parts-of-speech-quiz.htm