Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Câu hỏi

Ann and John is talking about social network.
-Ann: "Today social network plays an important role in communication."
- John: "___________”

A. I don't agree with you

B. I'm afraid I don't know

C. It's rubbish

D. I agree with you

Ann and John is talking about social network.-Ann: "Today social network plays an important role in communication."- John: "___________”