Unit 13 Unit 14 Unit 15 Unit 16 Unit 17 Unit 18
1. yours 1. be 1. all 1. all 1. there's 1. your
2. their 2. there's 2. there 2. there's 2. their 2. which
3. another 3. your 3. their 3. theirs 3. always 3. their
4. because 4. first 4. who's 4. too 4. often 4. its
5. something 5. who's 5. lets 5. along 5. often 5. does
6. always 6. people 6. across 6. money 6. important 6. largest
7. until 7. may 7. during 7. later 7. until 7. once
8. since 8. too 8. learn 8. remember 8. children 8. it's
9. surely 9. different 9. American 9. draw 9. early 9. change
10. answer 10. let's 10. ready 10. ready 10. learned 10. whether
11. complete 11. however 11. strong 11. beautiful 11. perhaps 11. either
12. carefully 12. sure 12. either 12. quite 12. past 12. animals
13. simple 13. English 13. already 13. buy 13. instead 13. ice
14. else 14. problem 14. suddenly 14. straight 14. carefully 14. although
15. friend 15. friend 15. weather 15. caught 15. language 15. weather
16. information 16. language 16. field 16. color 16. correct 16. whose
17. figure 17. whose 17. least 17. square 17. reason 17. you're
18. you're 18. information 18. happened 18. couldn't 18. difference 18. humans
19. plane 19. you're 19. single 19. child 19. history 19. choose
20. street 20. reason 20. whose 20. trip 20. north 20. sleep
21. couldn't 21. maybe 21. child 21. woman 21. seven 21. iron
22. reason 22. history 22. strange 22. eye 22. famous 22. troubled
23. difference 23. mouth 23. wish 23. milk 23. late 23. store
24. middle 24. soil 24. choose 24. pay 24. beside
25. step 25. human 25. they're
Unit 11 spelling list includes the 12 months of the year, the seven days of the week, and the word calendar.
Unit 7 Unit 8 Unit 9 Unit 10 Unit 12 Unit 12b
1. their 1. you'd 1. its 1. there 1. there 1. there
2. said 2. there's 2. people 2. who's 2. its 2. then
3. thought 3. first 3. world 3. little 3. every 3. than
4. often 4. through 4. important 4. asked 4. often 4. its
5. together 5. too 5. picture 5. young 5. until 5. because
6. enough 6. another 6. since 6. stopped 6. earth 6. thought
7. against 7. because 7. across 7. girl 7. during 7. let's
8. turn 8. between 8. it's 8. finally 8. surely 8. example
9. United States 9. along 9. toward 9. problem 9. it's 9. body
10. hundred 10. important 10. built 10. possible 10. several 10. group
11. finally 11. second 11. strong 11. explain 11. answer 11. piece
12. animals 12. across 12. river 12. caught 12. usually 12. instead
13. although 13. area 13. simple 13. yourself 13. money 13. fact
14. bottom 14. surface 14. build 14. seem 14. special 14. quite
15. explain 15. finally 15. clear 15. moment 15. that's 15. although
16. correct 16. possible 16. energy 16. teacher 16. common 16. size
17. measure 17. else 17. circle 17. bright 17. single 17. correct
18. hair 18. travel 18. straight 18. rather 18. information 18. suppose
19. woods 19. yourself 19. bright 19. length 19. except 19. natural
20. color 20. thus 20. sent 20. speed 20. figure 20. ocean
21. war 21. square 21. present 21. machine 21. you're 21. government
22. fly 22. moment 22. plan 22. information 22. free 22. baby
23. yourself 23. teacher 23. rather 23. except 23. fell 23. grass
24. seem 24. happy 24. they're 24. they're 24. suppose 24. it's
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6
1. there 1. there 1. there 1. there's 1. we'd 1. their
2. which 2. their 2. its 2. their 2. there's 2. than
3. their 3. first 3. little 3. then 3. their 3. its
4. its 4. its 4. another 4. than 4. because 4. only
5. water 5. most 5. every 5. who's 5. different 5. through
6. through 6. written 6. without 6. often 6. sound 6. work
7. own 7. does 7. country 7. answers 7. heard 7. thought
8. important 8. together 8. it's 8. I'm 8. usually 8. sure
9. year 9. sure 9. usually 9. perhaps 9. ground 9. morning
10. it's 10. it's 10. upon 10. notice 10. really 10. later
11. told 11. several 11. United States 11. that's 11. completely 11. course
12. later 12. faces 12. English 12. beautiful 12. notice 12. earlier
13. inside 13. groups 13. certain 13. watch 13. animals 13. able
14. hundred 14. among 14. special 14. friend 14. system 14. perhaps
15. warm 15. surface 15. area 15. music 15. although 15. beautiful
16. everything 16. follow 16. beautiful 16. single 16. least 16. watched
17. field 17. build 17. easy 17. explain 17. energy 17. happened
18. friend 18. check 18. friends 18. travel 18. correct 18. explain
19. music 19. grew 19. language 19. wrote 19. bed 19. straight
20. buy 20. listen 20. energy 20. farm 20. measure 20. mountain
21. window 21. ask 21. week 21. circle 21. straight 21. caught
22. mark 22. single 22. explain 22. whose 22. base 22. hair
23. heat 23. clear 23. lost 23. they're 23. they're 23. bird
24. they're 24. they're 24. spring 24. wood
