Verb TO BE: assistam ao vídeo e acessem os links para resolver os exercícios

http://www.englishexercises.org/makeagame/viewgame.aspid=1017
http://www.englishexercises.org/makeagame/viewgame.aspid=2813
http://www.englishexercises.org/makeagame/viewgame.aspid=6043
http://www.englishexercises.org/makeagame/viewgame.aspid=10597
http://www.englishexercises.org/makeagame/viewgame.asp?id=3001