https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex03
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex04
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?02
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?03
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?05
http://www.perfect-english-grammar.com/present-perfect-present-perfect-continuous-1.html
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