改为被动语态（英语）His father heard him crying at that time.He ____ _

改为被动语态（英语）His father heard him crying at that time.He ____ _ We have heard him sing改为被动语态.He ____ ____ ____ ____ ____ by He was cleaning the class room at that time （改为被动语态） I heard him singing改为被动语态 英语的被动语态将下列句子改为被动语态He made me do that for him.Did they build 改为被动语态 he made me do that for him 改为被动语态：We heard him sing in his room just now 英语初三一道句型转换He often makes his son stay at home alone.（改为被动语态） Tom's father had him finish his homework on time.(改成被动语态) He didn't stop crying on his way home 改为同义句子 He cried ____ _ 英语的一些句型转换,1.We use wood to make paper.(改为被动语态）2.I heard him 英语好的进.1.He can finish his work on time .(改为被动语态)His work ___