Explanation:
1. http://www.englishtenses.com/tenses/present_simple
2. http://www.autoenglish.org/7STG03.htm
Exercises:
1. http://www.englishtenses.com/exercise/present_simple_quiz
2. http://www.englishtenses.com/utest/present_simple_exercise_3
3. http://www.englishtenses.com/test/present_simple_1_gapfill_exercise
4. http://www.englishtenses.com/utest/present_simple_multiple_choice_exercise_2
5. http://www.englishtenses.com/test/present_simple_gap-fill_exercise
6. http://www.autoenglish.org/tenses/gr.presim.i.htm
7. http://www.autoenglish.org/tenses/gr.presim.pdf
Video:
1. http://www.youtube.com/watch?v=3W3AZ5Zw0n0
1. http://www.englishtenses.com/tenses/present_simple
2. http://www.autoenglish.org/7STG03.htm
Exercises:
1. http://www.englishtenses.com/exercise/present_simple_quiz
2. http://www.englishtenses.com/utest/present_simple_exercise_3
3. http://www.englishtenses.com/test/present_simple_1_gapfill_exercise
4. http://www.englishtenses.com/utest/present_simple_multiple_choice_exercise_2
5. http://www.englishtenses.com/test/present_simple_gap-fill_exercise
6. http://www.autoenglish.org/tenses/gr.presim.i.htm
7. http://www.autoenglish.org/tenses/gr.presim.pdf
Video:
1. http://www.youtube.com/watch?v=3W3AZ5Zw0n0