题目内容：

We should make full use of time to improve our spoken English.
把这句话变为被动,有两种形式.其中一种形式是Time should be made full use of to improve our spoken English.另一种是以Full use 作主语,不清楚它的被动是怎么变了.
Full use should be made of time to improve our spoken English.这么变对吗?

优质解答

首先可以肯定的是,你这两种变被动语态的思路是对的.
其次,你这第二种变法“Full use should be made of time to improve our spoken English”是不对的.
最后,第二种变法的正确形式应为：Full use of time should be made to improve our spoken English.