“…What is more, Vietnamese /z/ even has same place of articulation as /ð/ (refer to the consonant inventory by Doan, Nguyen, and Pham (2006)). Moreover, in contrary to English final consonants, Vietnamese ending sounds are never fricatives, and they are never released (Tang, 2007;Osburne, 1996;Avery & Ehlrich, 1995). In other words, pronouncing English fricatives at the word-final position is totally "new" to Vietnamese, thus, the negative transference arises, contributing to the confusion (Luu, 2011).…”