“What can I do for you?” - “_______.” A. No need to help. B. Thank you. C. Thanks, I’m just looking. D. Sorry for not buying anything.Đoạn văn15/80Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. “What can I do for you?” - “_______.” No need to help.Thank you.Thanks, I’m just looking.Sorry for not buying anything.Giải thíchChọn C