Mark the letter A, B, C or D on your answer sheet to indicate the most suitable respond to complete each of the following exchanges.
Mai and Nam are talking about the cell phone that Nam has just bought. Mai: “Wow, I’ve never seen such a nice cell phone, Nam” Nam: “ ”.
A.Oh, I don’t know.
B.Thank you. I’m glad you like it.
C.You’re welcome.
D.I agree with you.