(+) (-) (?)Did you write a letter to your parents? Jawab ya

(+) you wrote a letter to your parents
(-) you didn't write a letter to your parents

(+) I Wrote a letter to my parents
(-) I didnt write a letter to my parents
(?) Did you write a letter to your parents?
Yes, I did

Karena pertanyaannya menggunakan you pasti (+),(-) dan jawabannya menggunakan "I".
Kalau misalnya mau di ubah, "I" nya sisa di ganti dengan kata "You"

Sorry kalau salah