hear 用被动语态 是to do 还是doing 还是do啊?看看这一题Has he ever been heard( ) about hie trip to HongKong?A.of talking B.talk C.to talking D.to talk

请问什么时候用hear doing什么时候用hear do?如果是hear doing 的被动语态,就不存在还原to的问题了吧? hear 用被动语态 是to do 还是doing 还是do啊?看看这一题Has he ever been heard( ) about hie trip to HongKong?A.of talking B.talk C.to talking D.to talk be scheduled to do是被动还是虚拟语态 被动语态用let时,用be let do还是用be let to do be made to do还是doing?（被动语态） let sb do 的被动语态是be let to do还是be let do?一定要权威 请问：see,watch,notice,hear,feel,observe这些在被动语态里都要还原to可watch 的 固定搭配没有to呀,是watch sb do sth 被动语态中的助动词是did还是 do 被动语态中的助动词是did还是 do be going to do 的被动语态 把What are you going to do this evening?改成主动语态不不不不,是被动语态 在hear的常见短语中,是hear to do sth 还是hear doing sth 还是hear do sth. A let B do sth变为被动语态,是B be let do sth还是B be let to do sth we can hear birds singing.是被动语态吗 send 被动语态send sb sth变为被动时是send to sb sth还是什么？ try to persuade sb.to do sth.的被动语态是什么哪个是对的 be surprised to do sth是吃惊干某事吗 还是对某事感到吃惊 还是能理解为被动语态 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