根据例子改写被动语态例子是：原句：passengers should wear seat belts during the journey改写1：seat belts should be worn during the journey.改写2：Passengers are requested to wear seat belts during the journey现在请按要求

根据例子改写被动语态例子是：原句：passengers should wear seat belts during the journey改写1：seat belts should be worn during the journey.改写2：Passengers are requested to wear seat belts during the journey现在请按要求 to be是被动语态吗?举个例子 请问被动语态在什么情况下要用?被动语态怎么翻译?再举几个例子．谢谢!关键是被动语态怎么翻译？再举几个例子! 主动语态怎么转变成被动语态多带一些例子 被动语态怎么转变成主动语态多带一些例子 被动语态的结构是什么+例子介绍被动语态结构要有例子!10：00之前 被动语态的一般疑问句怎么写(各种时态都举一下例子）是把be动词调到句首,还是把助动词调到句首? 被动语态句型构成包括被动语态的各种时态构成,最好有例子. 被动语态的家规,帮忙举几个例子! 请告诉我被动语态的结构请举一些例子 初三被动语态的结构及一些例子`` 过去将来完成进行时的被动语态谁能举个例子 close down有被动语态吗?举个例子, 什么是被动语态?可以举个例子吗 invite tell ask没有sb用被动语态?请再举个例子 have been done 是被动语态 have sth done 也是被动语态 我有点蒙了.谁能帮我举个例子 被动语态怎么改写句子 被动语态中宾语和不及物动词问题被动语态中的宾语是动作的执行者还是承受者?I was hit by him,这里的宾语是I 还是him 另外能不能举个例子,被动语态中用不及物动词~