p. 19, activity 1a p. 19, activity 2 p. 19, activity 2a p. 19, activity 3 p. 190 _ lezione 13, ascolto 13.3 p. 190 _ lezione 13, ascolto 13.3 esercizi 1 p. 190 _ lezione 13, ascolto 13.3 esercizi 2 p. 193, German pronunciation p. 193, the alphabet sounds p. 194, Spanish pronunciation p. 195, m. 110 p. 197, Patterns of letters p. 197, The alphabet of sounds p. 197, Vowel sounds