Pronunciation of English Vowel Sounds 3 – Back Vowels – Part 1 (with captions) Topic: Back vowels Practice 4 vowel sounds. This is a lesson in TWO PARTS. Part 1 is the main presentation.... Written on July 11, 2012 at 8:47 pm Categories: Wordpress Tags: back, captions, English, Part, Pronunciation, Sounds, Vowel, Vowels