a.
- T 3. F 5. T 7. T 9. F 11. T
- F 4. F 6. T 8. T 10. F
b.
- c 3. d 5. c 7. d 9. a
- b 4. a 6. c 8. d
V. Grammar
a.
- d 2. c 3. c 4. a 5. a 6. c
b.
- could not
- need not / do not need to
- can not
- has not been able to
- had to
- were not allowed to
Unit 3
II. Vocabulary Practice
a.
- o 4. c 7. b 10. m 13. g
- k 5. a 8. n 11. l 14. j
- f 6. d 9. h 12. i 15. e
b.
- interval 4. augmented 7. minor
- diminished 5. describe 8. quality
- inversion 6. perfect 9. tritone