There is/are

http://www.pearsonlongman.com/young_learners/students/is-there.html
http://www.tcet.com/eaonline/GrammarCentral/thereis.html
http://www.eslgo.com/classes/beginner/bedroom.html

http://www.english-zone.com/verbs/thereisare1.html
https://www.helpforenglish.cz/article/2008050102-vazba-there-is-are 

http://www.helpforenglish.cz/tipy-a-triky/tipy-a-triky-pro-zacatecniky/c2010082002-THERE-IS---THERE-ARE--tabulka-.html
http://a4esl.org/q/h/9807/km-thereisare.html
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-8958.php

describe a picture:

http://fantageviva.wordpress.com/

http://www.agendaweb.org/
http://www.gamesforthebrain.com/game/whatwasthere/
http://www.eslprintables.com/buscador/buscar.asp?nivel=any&age=0&tipo=any&contents=there+is%2Fare&username=&B1=Search