Simple Present

http://s.mound.free.fr/skyblues67/simplepresent/conj4frms/conjworkspres.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=714

http://www.english-grammar-lessons.com/presentsimple/exercise2.swf

http://www.montsemorales.com/gramatica/PresSimAffNeg.htm

http://www.1-language.com/englishcourse/unit4_grammar_exs2.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=1555

http://www.1-language.com/englishcourse/unit5_grammar_exs2.htm

TEST
http://www.ego4u.com/en/cram-up/tests/simple-present-1