Mark the letter A, B,...

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

A. I'd love to, but I've got a pretty tight schedule today

B. No more time for me. I have to work with my boss

C. I wish I had been free yesterday to have time with you

D. Excuse me; however, I'm so busy all day from morning