15. I'll complete the final assignment next Friday.

16. John is going to represent these reports tot he executive board.

17. They were constructing a new shopping center at this time last year.

18. You shouldn't skip breakfast.

19. Have David's parents forgiven him yet?

20.→  Hoa's teacher could give Hoa a prize if she worked well.

      → If Hoa worked well, Her teacher could give her a prize.

22. Nam used to do his homework after dinner.

23. Are Lan's parents taking her to the zoo.

24.→ I wanted my mother to teach me Spanish when I was small.

     → When I was small, I wanted my mother to teach me Spanish.

\[=>\]

15. I'll complete the final assignment next Friday.

16. John is going to represent these reports tot he executive board.

17. They were constructing a new shopping center at this time last year.

18. You shouldn't skip breakfast.

19. Have David's parents forgiven him yet?

20. Hoa's teacher could give Hoa a prize if she worked well.

       If Hoa worked well, her teacher could give her a prize.

22. Nam used to do his homework after dinner.

23. Are Lan's parents taking her to the zoo?

24. I wanted my mother to teach me Spanish when I was small.

      When I was small, I wanted my mother to teach me Spanish.