TO BE

Exercise 1

http://www.pilarcordoba.com/1eso/to_be/tobe1.htm

Exercise 2
http://www.juntadeandalucia.es/averroes/ceip_san_tesifon/recursos/ingles/act_interactivas/cuestionarios/tobe0.htm

Exercise 3

http://www.juntadeandalucia.es/averroes/ceip_san_tesifon/recursos/ingles/act_interactivas/cuestionarios/tobeneg_2.htm

Exercise 4
http://www.learnenglish.be/gr1_tobe_study.htm