Blog de 6º primaria

Present Perfect practise!!

https://www.learnclick.com/mchoice/show/878

http://www.impact-english.com/members/Grammar_Practice/Always/test-grammar/gr_prac_use-PPrf.htm

http://www.englishlab.net/hp/quiz18_past_simple_present_perfect_1.htm

http://www.perfect-english-grammar.com/past-simple-present-perfect-3.HTML

http://www.perfect-english-grammar.com/past-simple-present-perfect-2.html

https://www.ego4u.com/en/cram-up/grammar/simpas-preper/tests?test2

https://www.ego4u.com/en/cram-up/grammar/simpas-preper/tests?test3

http://www.agendaweb.org/verbs/present-perfect-simple-past-simple-exercises.html