Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. I came back to Bangkok but I still remember your school spring fair.
b. Dear Xuan,
c. Thank you for having invited me to the fair. I'll never forget the event in my life.
d. I liked the songs and games, but the dish called "Cha Gio" made a deep impression on me.
e. I am now staying on a farm to help my uncle collect grapes.