16-17-24-25

Practice 16

  1. s
  2. es
  3. es . . . ø
  4. ø
  5. ø . . . ø
  6. es . . . ø
  7. s
  8. es
  9. es
  10. s
  11. ø
  12. es . . . ø
  13. es
  14. carries
  15. s
  16. s
  17. ø
  18. s
  19. es
  20. ø

Practice 17

  • leaves . . . He walks
  • catches . . . he transfers
  • He arrives
  • He stays . . . he leaves
  • He attends . . . He . . . studies
  • tries . . . he goes
  • He has

Practice 24

  1. My friend doesn’t speak English well.
  2. I do not believe you.
  3. My sister’s dog doesn’t bark.
  4. Our teacher is always starts class on time.
  5. Look! The cat got up on the counter.
  6. Does Marie have enough money?
  7. We do not like this rainy weather.
  8. Mrs. Gray is worried about her daughter.
  9. My brother doesn’t have enough free time.
  10. Does Jim drive to school every day?
  11. He always hurries in the morning. He doesn’t want to be late.
  12. Anna usually has dinner at eight.

Practice 25

  1. Are . . . I am . . . I’m not
  2. Do . . . they do . . . they don’t
  3. Do . . . I do . . . I don’t
  4. Does . . . she does . . . she doesn’t
  5. Are . . . they are . . . they aren’t