Welcome back!
Let’s start with some useful words:
[youtube]http://www.youtube.com/watch?v=0fqfW8fVbKE&list=TL-GC2b9eC3R4[/youtube]
Ready for some exercises? Play here!
More difficult:
http://conteni2.educarex.es/mats/14445/contenido/
http://www.purposegames.com/game/75b87d3b6f
More fun:
http://www.sesamestreet.org/play#media/game_4ab931f6-14e5-11dd-83fd-1ff2199def8e