present simple vs. continuous

Simple or continuous?

http://www.isabelperez.com/prs-prc.htm

Present simple - Matching exercise

http://www.isabelperez.com/pr-simple.htm

Present simple negative

http://www.isabelperez.com/pr-simple-neg.htm

Fill in the gaps

http://www.isabelperez.com/happy/tenses/exercises/habits.htm

question and answer

http://www.englishlearner.com/tests/present_simple_continuous_questions_matching_1.shtml

http://www.englishlearner.com/tests/present_simple_continuous_quiz_1.shtml