U1-12 Final revision
12. 6. 2015
Prepositions:
http://www.perfect-english-grammar.com/prepositions-of-place-exercise-1.html
http://www.perfect-english-grammar.com/time-prepositions-exercise-1.html
http://www.perfect-english-grammar.com/prepositions-of-place-exercise-2.html
Past Simple or Present Perfect:
http://www.perfect-english-grammar.com/past-simple-present-perfect-4.html
http://www.helpforenglish.cz/article/2005120403-present-perfect-vs-past