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 9 to 13.

a. Mai: It's my pleasure, Ms Kim. I'm glad you found it of help. If you need any further information, please contact me.
b. Ms Kim: I sure will, Mai. Thanks again.
c. Ms Kim: Mai, thank you for presenting about those online courses.