句子成份repayment of which he may demand at any time

epayment of which是定语从句的引导词,which指代的是money.
定语从句还原后为：
Repayment of (the money = which) may demand at any time.该钱款的偿付可以随时索要.
这种用法并不罕见,当指代的词在从句中做定语时,就写成这种格式.而这是可以和whose互换的：
,he is lending the bank money,repayment of which he may demand at any time.
= ,he is lending the bank money,whose repayment he may demand at any time.
例如：
Look at the building,the roof of which is
white.
=Look at the building,whose roof is white.

money的同位语