被动语态可否省略介词

Every minute must be made use of to improve our spoken English.

You can make a good use of studying in the school.

Studying in the school should be made a good use of？

We should make full use of our spare time to study.

Our spare time should be made full use to study.

这里的of为什么省略了呢？

make use of常被作为短语动词，of是不能省略的，否则无法接宾语。你的最后一个句子不知出自何处？如果没有of，our spare time（原来主动语态make use of的宾语）无法作被动语态的主语。即：

We should make full use of our spare time to study.

→ Our spare time should be made full use of to study.

曾克辉 -

擅长：英语考试 | 采纳率 54% | 回答于 1秒前

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曹荣禄 1秒前

擅长：动词用法,句法问题

Our spare time should be made full use to study. （X）