There is / there are ?

Click here  to get more exercices :

http://www.web-esl.com/countnocount/there.htm

http://www.juntadeandalucia.es/averroes/torredelprado/ingles/there_is7.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=5272

http://www.englishexercises.org/makeagame/viewgame.asp?id=4627

http://saberingles.com.ar/curso/lesson05/05.html