It's wrong not to keep in touch with your grandparents.
Miley has moved to a new town and received a letter from her grandparents.
Miley wants to react to the letter.
Miley writes a letter back to her grandparents.
Miley thinks the letter is nice but does not write a letter back.
Miley's grandparents will be happy she wrote back to them.
Miley's grandparents will be sad that she did not write back.