Lesson 1.1

1.  skateboard

2.  rattlesnake

3.  mountainside

4.  solo

5.  telescope

6.  peppermint

7.  solitary

8.  outstanding

9.   constellation

10. stellar

11. desolate

12. solitude

13. underground

14. periscope

15. earthquake

16. breakfast

17. scope

18. sweatshirt

19. microscope

20. thunderstorm

Lesson 1.2

1.  disorder

2.  telegraph

3.  image

4.  imagination

5.  nationality

6.  telephone

7.  dishonest

8.  television

9.  disadvantage

10. disagree

11. telephoto

12. national

13. imagine

14. nation

15. telecast

16. discontinue

17. nationalize

18. telegram

19. imaginary

20. international

Lesson 1.3

1.  enrich

2.  unpleasant

3.  endanger

4.  enable

5.  uninspired

6.  unlikely

7.  encompass

8.  unmarked

9.  enlarge

10. ungrateful

11. encode

12. enlighten

13. unlimited

14. unsatisfied

15. unsweetened

16. enjoy

17. encourage

18. uneaten

19. enrage

20. unnamed

Lesson 1.4

1.  modesty

2.  vigilant

3.  servant

4.  necessity

5.  civility

6.  honesty

7.  nobility

8.  assistant

9.  immigrant

10. lucky

11. messy

12. agility

13. rainy

14. pleasant

15. hostility

16. defiant

17. tasty

18. resistant

19. purity

20. formality

Lesson 1.5

1.  independence

2.  finally

3.  convenience

4.  wisely

5.  violence

6.  timidly

7.  absence

8.  cautiously

9.  turbulence

10. silently

11. emergence

12. desperately

13. excellence

14. accurately

15. difference

16. strictly

17. reference

18. beautifully

19. competence

20. directly

 Lesson 2.1

1.  indefinite

2.  doubleheader

3.  eyewitness

4.  inefficient

5.  inaccurate

6.  windshield

7.  loudspeaker

8.  undertake

9.  headquarters

10. inexperienced

11. keyboard

12. infinite

13. inability

14. injustice

15. grasshopper

16. overindulge

17. insight

18. involuntary

19. newsbreak

20. inconsiderate

Lesson 2.2

1.  discouraged

2.  irregular

3.  portable

4.  import

5.  displace

6.  irrelevant

7.  sign

8.  signify

9.  disembark

10. signal

11. exporting

12. national

13. irrefutable

14. porter

15. transportation

16. disinterest

17. signature

18. insignia

19. irrational

20. irreparable

Lesson 2.3

1.  pictured

2.  illiterate

3.  laminated

4.  registered

5.  supposed

6.  featured

7.  uproar

8.  tumult

9.  extraordinary

10. pandemonium

11. illegible

12. illegal

13. selected

14. wonderful

15. inflamed

16. illogical

17. marvelous

18. consistent

19. hindered

20. complimented

Lesson 2.4

1.  refurnish

2.  meter

3.  diameter

4.  reorganize

5.  reintroduce

6.  revisit

7.  chronic

8.  chronicle

9.  reaffirm

10. barometer

11. reinforce

12. thermometer

13. reformulate

14. synchronize

15. repurchase

16. chronology

17. regenerate

18. centimeter

19. chronological

20. reapply

Lesson 2.5

1.  devour

2.  nonviolent

3.  section

4.  nontoxic

5.  nonstick

6.  jury

7.  nonessential

8.  carnivore

9.  herbivore

10. nonresident

11. dissect

12. intersect

13. noncreative

14. jurist

15. jurisdiction

16. nonsense

17. nonconforming

18. omnivore

19. nonprofit

20. nonabrasive

Lesson 3.1

Lesson 3.2

Lesson 3.3

Lesson 3.4

Lesson 3.5

Lesson 4.1

Lesson 4.2

Lesson 4.3

Lesson 4.4

Lesson 4.5