http://www.englishexercises.org/makeagame/viewgame.asp?id=5272
http://childhouse.net/uploads/media/stories/advanced/classroom.swf
http://www.agendaweb.org/grammar/there_is_are-exercises.html
http://childhouse.net/uploads/media/stories/advanced/classroom.swf
http://www.agendaweb.org/grammar/there_is_are-exercises.html
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