Day 58. Present Simple vs Present Perfect

Yes, we are learning the differance about these tenses! Are you ready? Below are some exercises for you. Good luck!
https://www.ego4u.com/en/cram-up/grammar/simpas-preper
http://www.edufind.com/english-grammar/present-perfect-vs-simple-past/
http://www.perfect-english-grammar.com/present-perfect-or-past-simple.html
http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/ppvpast.htm
See ya tomorrow!