52 - THERE IS / ARE

http://english-zone.com/verbs/thereisare1.html

http://www.1-language.com/englishcourse/unit17_grammar_exs.htm

WHAT´S THERE ?

WHEN IS THERE ?

HOW MANY ARE THERE ?

WHERE IS THERE ?

51 - UNIT 7 - DVD

50 - UNIT 7 AUDIO

TRACKS 19, 20, 21

http://www2.cambridge.org/interchangearcade/downloads.do

49 - SOME AND ANY

http://www.ego4u.com/en/cram-up/vocabulary/some-any

http://www.ego4u.com/en/cram-up/vocabulary/some-any/exercises

48 - PARTS OF THE HOUSE

http://www.englishexercises.org/makeagame/viewgame.asp?id=1171

http://www.englishexercises.org/makeagame/viewgame.asp?id=1274

47 - UNIT 7

Does it have a view?

http://www2.cambridge.org/interchangearcade/listtypes.do?level=1&unit=1&stage=1

46 - Simple present

http://www.englishexercises.org/makeagame/viewgame.asp?id=714