seen to do用于被动?以我理解这句子有被动,但答案是D.能顺便解释一下doing和do

seen to do用于被动?以我理解这句子有被动,但答案是D.能顺便解释一下doing和do 被动语态中动词是不是都要加to /for你理解错误了，例如sth be seen to do 这个to/for一定要有吗？ see sb do/doing 被动用法sb be seen to do对还是sb be seen doing 在被动语态中see sb do的不定式to具体是怎样还原的Seen from the top of the hill,the village looks smaller.这句话中的seen能否换成See呢?可以理解为独立主格结构,前半句的主语是人,所以用主动,而后半句的 be seen 的用法比如说“他被看到在玩游戏”之类的,被动.be seen 什么时候用be seen doing?什么时候是be seen to do?什么时候是be seen do? see sb.do sth.的被动是be seen to do sth吗如题,还有有没有be seen do sth这种句式, 关于be seen doing 和 be seen to do有 see sb doing 和 see sb to do,那么相应的,被动要还原to,是不是就改成sb be seen to doing 和 sb be seen to do?但好像没有sb be seen to doing 这种说法,只有sb be seen doing. The middle -age man was seen ( )out of the house on the afternoon of the murder.A.came B.come C.to come D.have come .一楼的 这是被动 感官动词的被动不是用to do 感官动词变成被动语态后要加-to do或-doing 像 I was seen him to sing.或 I was being seen him singing.这两句对吗? 哪些词不用于被动语态let 那是不是let to do 关于感官动词用于被动还原to用于被动还原to是不是只针对与感官动词加省去to的不定式的情况?比方这个题虽然用与被动,但后面加的动词却表示动作的正在进行．．The thief was seen stealing the pas the missing boys were last seen ____near the river A.playing B.play C.played D.to play但是see的被动语态不是 see sb to do .. 请问 感官动词无被动语态这句话对吗?Having a trip abroad is certainly good for the old couple,but it remains____whether they will enjoy it A to see B to be seen C seeing D seen应该选什么怎么理解呢 有关被动语态中的toOur friends _____ playing football.A.are seen B.seen C.are seen to D.seen to我选的是C,但我们老师说答案是A,这里see 改为被动语态不是要加上to吗? make sb do变被动是——be made to domake sth done变被动是什么hear sb do变被动是什么hear sb doing变被动是什么?为什么变法不一样呢?我问的是变成被动是什么 麻烦帮忙把这句话改成被动语态Employers do not pay a lot of money to factory workers in Laos.这句的一种变法是以Factory workers开头,这个不用写了.我需要以A lot of money 作为主语开头的被动语态,不能改变原 关于agree 1.这句话对么 agree on和agree to可用于被动语态,但agree with和agree about不可用于被动语态.2.agree的被动语态可以省略介词? happen有被动语态吗!十万火急到底有没有哇~~~~我见过有的啊!People can be seen running everywhere.Do you know what is happened?这是字典上的例句啊.我在网上查怎么人家都说没happen有被动语态!