Activities to practice the different forms of the verb to be:
Activity 1:
http://www.bradleys-english-school.com/online/flashmultiplechoice/mc_amisare.html
Activity 2:
http://www.englishexercises.org/makeagame/viewgame.asp?id=2813#a
Activity 3:
http://www.eclecticenglish.com/grammar/PresentSimpleToBe1A.html
Activity 4:
http://www.englishexercises.org/makeagame/viewgame.asp?id=3053
he fet el primer exercici inomes he fallat tres paraules
dama fare els altras dos exercicis
He jugat i he tret un 10 a tots.
e fet activiti 2 e sacat 7 i 3 sense faltes