More on Present Simple

http://www.isabelperez.com/present-sp-1.htm
http://www.english-area.com/paginas/presentesimpleafirmativa.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=2272
http://www.englishexercises.org/makeagame/viewgame.asp?id=714
http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/presnq2.htm