关于英语主动变被动的小问题.They have been building houses since last week.变为被动后：Houses were have being built since last week.这么变对么?如果不对帮忙改动一下.

关于英语主动变被动的小问题.They have to built many houses since last year.变为被动后：Houses have to been built since last year.这么变对么?be 为什么要改为 been?没有be 变成 been 关于英语主动变被动的小问题.They have been building houses since last week.变为被动后：Houses were have being built since last week.这么变对么?如果不对帮忙改动一下. 英语：主动变被动,被动变主动. 英语 关于含义宾语从句的主动句变被动的问题看到语法书上说带有宾语从句的句子变成被动语态时,通常用it来作为被动句的形式主语,宾语从句保留不变.如：They said that he had gone abroad to study 英语 关于含义宾语从句的主动句变被动的问题看到语法书上说带有宾语从句的句子变成被动语态时,通常用it来作为被动句的形式主语,宾语从句保留不变.如：They said that he had gone abroad to study 英语主动语态变被动语态例句一般过去时的 两个英语句子小问题~（英盲求解）语法书上有两个主动变被动的句子：1.They visited the city two years ago.The city was visited by them two years ago.2.Where did you make them?Where were they made by you.为什么两句的被 主动变被动They often play football after school帮帮忙 they were saved by the clever cat被动变主动 英语题被动变主动Were they seen to gei off the bus by their teacher yesterday?变主动 （ ）their teacher()()()off the bus yesterday? 英语的主动变被动They build houses every year.变成被动后：Houses are built every year.这样变对吗?句子末尾的时间直接落下来吗? 英语被动语态的问题,请问什么时候要用被动,什么时候用主动啊, 英语中的主动被动问题：关于英语中的主、被动一直不清楚,请各位用比较简洁易懂的话解释一下 英语.主动语态变被动语态的题.We must plant more trees next year. 英语题,要十个主动语态变被动语态的句子,谢谢了 英语被动语态中体现不出主语的怎么变主动语态? 英语主动句变被动句,和方法 【英语】被动变主动Rice is grown in the northeast of China.变主动