Mark the letter A, B, C, o...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following question.

A. Not at the moment. He can't be disturbed.

B. OK, you will need to check my diary.

C. OK, let me just check the diary.

D. Have a seat and I'll be with you in an hour.