问题补充:
He has all of the money and no one would like to help him.
A. used to
B. used as
C. used up
D. used for
答案:
A. used to
B. used as
(答案→)C. used up
D. used for
解析:used to 过去常常做某事;used as用作;used up 用完,耗尽;used for用于。句意:他花完了他所有的钱,并且没有人愿意帮助他。结合语境可知选C。