单选题 Make sure that report is on my desk at the ______ of next week!
【正确答案】 D
【答案解析】选项A错误，“final”后多跟名词。选项B错误，“middle”要跟在介词“in”后面。选项C说不通。选项D正确，“at the beginning”是正确的结构。