Instruction: For each drawing presented, there is only one consonant sound of English that could be produced by a vocal tract positioned as shown; you are to figure out which consonant sound is represented (either by referring to the descriptions of different sounds or by experimenting with your own vocal tract-some of each is recommended). Be sure that you take into account the voicing, manner, and place of articulation of each sound. Note that voicing is shown by two wavy or bumpy lines (representing vocal fold vibration) where the larynx would be, whereas voiceless sounds are represented by two lines shaped like an ellipse at the larynx level, indicating an open glottis. Take care also to note whether the air passage to the nasal cavity is open or closed (i. e., if the velum is lowered or raised).