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.

Hi Gemma,
a. I appreciate the advice you gave me about improving my English skills, which has been really useful.
b. I’ve been looking into the IELTS course you recommended, and it seems like exactly what I need.
c. You know, we could sign up for the same course, so we could motivate each other throughout the lessons.
d. They offer both online and in-person options, which makes it even more convenient for both of us.
e. Let me know if you’re interested in joining, and we can register together!
Write back soon,
Billy