问题
单项选择题
A promising note is a written agreement to pay a certain sum of money at some time future.
A.time futures
B.futures
C.futures time
D.future time
答案
参考答案:D
解析:[分析] 结构应用。 此处要注意词序:时间状语是at...time,如:at this (that) time在这(那)时: future在此是形容词“未来的,将来的”,作time的定语;因此选项D是答案。