In the following links you will find revision activities related to the present simple and present continuous.
http://www.members.iinet.net.au/~adelegc/grammar/pres_cont/pres_cont_2.html
http://www.montsemorales.com/vocabulario/VerbsSpot1-4b.htm
http://www.juntadeandalucia.es/averroes/torredelprado/ingles/presentcont1.htm
http://www.montsemorales.com/gramatica/PresCont0.htm
http://www.learn-english-online.org/Lesson7/TestIt/PresCont1.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=1098