1. greeting voice quality
2. result of length, size, tension, and elasticity of the vocal cords 1 salutation
3. the "voice box" indelible
4. paying active attention to the words of a speaker trite
5. the eardrum 3 larynx
6. checking for grammatical, spelling, and typographical errors 5 tympanic membrane
7. spiral tube of the inner ear that contains nerve endings cochlea
8. worn out proofreading
9. structural features of an auditorium acoustics
10. cannot be removed or washed out 4 listening