固定用法 make sb do sth =sbbe made to do sth
即省去TO的不定式变被动语态时要还原TO
如果不明白,请再问；如果对你有所帮助,
请点击本页面中的“选为满意回答”按钮,谢谢!这里面为什么他是被动啊，主语是人所以是被动？不是因为主语是人用被动，是根据句意：他们被要求在半年内完成这座桥。把它改为主动句是：(People )made them finish building the bridge in half a year .被动句是： They were made to finish building the bridge in half a year .