Mark the letter A, B, C or D to indicate the most suitable response to

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

 

“Could you do me a favour, please?”

• A. A. Sure. No problem.
• B. B. Do you really need help?
• C. C. No, thank you.
• D. D. Yes, and when's that?