Let's revise the present tenses contrast by means of some exercises and some notes you will see below. Don't hesitate in asking for further clarification of any problems or doubts that may arise.
http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive2.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=1438
https://elt.oup.com/student/solutions/preint/grammar/grammar_01_012e?cc=global&selLanguage=en
http://www.language-worksheets.com/present-continuous-simple-elementary.html
http://www.usingenglish.com/quizzes/66.html
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-13689.php
Not enough? Have a look at these notes especially prepared for you
http://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive2.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=1438
https://elt.oup.com/student/solutions/preint/grammar/grammar_01_012e?cc=global&selLanguage=en
http://www.language-worksheets.com/present-continuous-simple-elementary.html
http://www.usingenglish.com/quizzes/66.html
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-13689.php
Not enough? Have a look at these notes especially prepared for you
