You’ll sound a lot more polite if you make a request a question.
A. in the form of
B. in reply to
C. in preparation for
D. in return for
网友回答
A. in the form of
B. in reply to
C. in preparation for
D. in return for
解析： 短语辨析。A以…形式；B作为…的回应；C准备…；D作为回报；句意：如果你以问题的形式提出请求，你应该听起来更有礼貌。故A正确。