Was - Were

1- http://www.ego4u.com/en/cram-up/grammar/simple-past/exercises?03

2- http://www.englishexercises.org/makeagame/viewgame.asp?id=2023

3- http://www.usingenglish.com/quizzes/77.html

4- http://suz.digitaleschulebayern.de/english/grammar/was_were1.htm

5- http://s.mound.free.fr/skyblues67/simppast/wascloze.htm

6-  http://www.eflnet.com/grammar/yesnopast.php#.U9e8cfl5Png

7- http://www.montsemorales.com/gramatica/PastSimBeAffNeg.htm

8- http://www.englishexercises.org/makeagame/viewgame.asp?id=3509

9- http://learnenglishkids.britishcouncil.org/es/grammar-games/past-simple-verb-be

10- http://www.eslgamesplus.com/was-were/