We are looking __________ to receiving a prompt reply to our letter.34/64Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. We are looking __________ to receiving a prompt reply to our letter.roundthroughforwardafterGiải thíchĐáp án : C Cấu trúc “look forward to” + doing something: mong đợi, mong ngóng làm gì