The use we make of our time is not proper.为什么是定语从句

问题描述:

The use we make of our time is not proper.为什么是定语从句
为什么是定语从句?省略了关系代词吗?哪一个关系代词?作谁的宾语吗?请分析,谢谢!

The use (先行词)(that/which引导做make的宾语被省略) we make of our time is not proper.
整句译为:我们对时间的利用是不妥当的.
The use is not proper.
make use of our time
we make of our time作the use的定语