Every minute and every second should be made full use of to prepare for the tests.

问题描述:

Every minute and every second should be made full use of to prepare for the tests.
这里一定要用不定式作状语吗?不能用动词ing 来做目的状语吗?
介词后面不是用动名词形式吗,这里不是相矛盾吗

做目的状语一般都是用不定式,不用现在分词,make full use of 它的宾语在前面,即every minute and every second,这里是一个被动语态,把句子还原成主动语态就是:(We) should make full use of every minutes and ever...