VERB TO BE (PAST), THERE WAS, THERE WERE

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

http://www.englishexercises.org/makeagame/viewgame.asp?id=5211

http://www.englishexercises.org/makeagame/viewgame.asp?id=8366

http://www.englishexercises.org/makeagame/viewgame.asp?id=562

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

http://www.englishexercises.org/makeagame/viewgame.asp?id=5860

http://www.englishexercises.org/makeagame/viewgame.asp?id=7938 

http://a4esl.org/q/f/z/zz86skm.htm