TRY TO DO THESE EXERCISES
http://www.really-learn-english.com/simple-present-exercises.html#01
http://www.englishexercises.org/makeagame/viewgame.asp?id=2975
http://www.englisch-hilfen.de/en/exercises/questions/simple_present2.htm
TRY TO DO THIS QUIZ.....
http://www.usingenglish.com/quizzes/65.html
LOOK THIS VIDEO WITH SOME DAILY ACTIVITIES.....
To identify Simple Present these are adverbs of frequency
always;
often;
usually;
sometimes;
seldom;
never ...