to, of in; on, with, atNever will I overindulge the requests ___

to, of in; on, with, at
Never will I overindulge the requests ______my flesh; rather I will cherish my body______ cleanliness and moderation.
【正确答案】：of; with
【题目解析】：此句的意思是我绝不放纵肉体的需求，我要用洁净与节制来珍惜我的身体。Request of表示是什么的要求；with表示以…的方式，at无此种用法。