Click on the links below to do the exercises.
http://www.tinyteflteacher.co.uk/learning-english/grammar/exercises/present-simple1.html
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http://www.autoenglish.org/basic/frequencypal/frequency.html
http://www.englishexercises.org/makeagame/viewgame.asp?id=1400
http://www.bastrimbos.com/Hotpotatoesfiles/advfreq2.htm
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http://www.autoenglish.org/basic/frequencypal/frequency.html
http://www.englishexercises.org/makeagame/viewgame.asp?id=1400
http://www.bastrimbos.com/Hotpotatoesfiles/advfreq2.htm