i heard he （）（sing）at that time.为什么填was sing

i heard he （）（sing）at that time.为什么填was sing I heard him sing a song in the next room just nom .(改为同义句）He ( ) ( )( ) sing a song in the next room just nom. i heard him （）（sing）at that moment i heard he （）（sing）at that time第一个填sing 第二个填wassinging.麻烦大家帮我讲讲! 英语题Someone _______ in the classroom in the past.Nobody knows who he is1.选择（）Someone _______ in the classroom in the past.Nobody knows who he is.A.heard to sing B.was heard sing C.heard sing D.was heard to sing2.填空A dictionary is a v They were heard ____（sing）when I walked past.They were heard ____（sing）every morning. ）题 改为被动语态 I saw your teacher come.I heard her sister sing a Japanese song.用适当形式填空 He is often seen______(do)shopping in this shop.Tony is often made_____(have)piano lesson. （ ）Though I have often heard this song ,I have never heard you it.A.being sung,sang B.sang,singing C.sung,sing D.to be sung,to sing 为什么? He asked me if I often heard Jenny ___________ pop spngs in the next room.A) sing B) to sing C) singing D) was singing选什么?为什么? I heard some children __(sing) a song just now . 1、When I passed his room,I heard him （）（sing） I heard her ＿（sing） in the next room when I came back. he was heard singing=he was heard to sing?dictionary tells us like this,I don't know why He ____the song in the next room last night.A.was heard sing B.was heard to sing C.heard sing DHe ____the song in the next room last night.A.was heard sing B.was heard to singC.heard sing D.heard to sing为什么? I heard Max sing just now.What__beautiful voice!That's true.He also has __good sense of humor.A./;a Ba;aCa;/Dthe;a He___in the classroom just now , he ___be there now A. heard to sing , may B.was heard singHe___in the classroom just now , he ___be there now A. heard to sing , mayB.was heard sing ,must c.heard sing , must. D.was heard to sing , may He was often heard sing .对么 He asked me if I often heard Jenny ________ pop songs in the next room.A. sing B. to singC. singing D. was singing知道选A,为什么 he was often heard ()in the next room.A.to sing B.sing为什么选A.求讲解