Exercise 1.4. Choose the appropriate names of sounds to match the definitions given below. voiced sounds voiceless sounds nasal sounds oral sounds velar sounds alveolar sounds vowels consonants a) These sounds are produced when the tip of the tongue touches the alveolar ridge behind the top teeth. b) ............ There is a vibration of the vocal folds when these sounds are articulated. ....... c) ............ These sounds are produced with the velum raising to allow the escaping of airflow through the mouth. d) ................ These sounds are made with the lounge touching the soft palate. e) ............... These sounds are produced when the soft palate lowers to prevent the airflow passing through the mouth. f) ......... These sounds are articulated by raising the tongue high, keeping it in the central or lowering it in the mouth. .......... These sounds are produced when the airstream is completely or partially obstructed by constriction of the speech organs. ............. These sounds are articulated with the opening h) of vocal folds and no vibration occurs.