Mark the letter A, B, C, or D on you...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges from 47 to 48.

A. I've been to Beijing recently. 

B. Badly. And how are you? 

C. Oh, I've done a lot of things 

D. Oh, pretty good. And you?