every minute should be make use of to prepare for the exam 为

应该是
Every minute should be "made" use of to prepare for the exam.
这里的of 不是和 to 搭配的.这句中的to prepare 表示目的,指花时间来做什么.
我举一个例子：
We should make use of every minute to prepare for the exam.
如果这句让你主动改被动,你会怎么改呢?是不是就是你提问的原句呢?