He was seated是被动语态吗?为什么用was?用is不行吗?

He was seated是被动语态吗?为什么用was?用is不行吗? 英语被动语态的结构he was killedthe window was broken by Mike都是表示被动语态被动语态的结构是be+过去式还是be+过去分词呢?有什么区别吗 i was born in shanghai是被动语态吗 the test was finished是被动语态吗? MY father was shocked.是被动语态吗. He was surprised that she had buy a sports car是被动语态+宾语从句吗?还是表语从句? The telephone was rang 是被动语态? was being是什么时态的被动语态来着,记不得了.是过去进行时的被动语态吗? he was asked by a businessman to flywas asked 被动语态吗.ask by 一个被动语态转换成主动语态的句子When all those present were seated he began his lecture.转换成主动语态 He was badly hurt 中badly修饰Be动词吗 还是修饰 be hurt 这个被动语态如果是 be hurt badly 到底是修饰形容词hurt 还是 被动语态 我不明白seat不是不能用被动吗?那when everyone was ___the meeting began.为什么答案是选seated的呢?was seated不是被动吗?呵呵.比较傻! when was this bridge built 被动语态我正在学被动语态,想问：如果是：when did this bridge built 就是一般语态的了吗?而was +done是被动语态?why? after they were seated为什么用被动语态 John found his chinese was so limited that he could hardly make himself understood.这个句子是被动语态吗?那为什么没有be动词? 英语中不及物动词没有被动语态,那么He was seen to walk into this building .这句话是错的吗? he has been there since 1997s是完成时被动语态吗?如果是为什么要用被动语态?不可以说成he has lived th He was dressed in a black suit.是被动语态么?为什么在dress后加ed?什么时态?