I heard someone play the piano in the music room an hour ago.改为被动语态

I heard someone play the piano in the music room an hour ago.改为被动语态 3.Someone was shouting.I heard it. I singing someone doing heard my honework while was I i heard someone ( ) a song on my way home I heard someone was badly hurt in the t____ accident . I heard someone is singing.(改为简单句) i heard someone saw a UFO last night哪里错了?heard someone saw a 中改一个。 英语翻译I've never heard you play like that I finally have someone to play tennies with i heard someone calling me 为什么没有be?根据be doing sth 不是应该写成 i heard someone was calling me I heard someone open the door when I passed by 改错 When I was doing my homework ,I heard someone (knock) at the door. I was reading ___ I heard someone calling my name.A while B when While I was _ _the hill.I heard someone shout to me.填二词 I heard someone (cry) in the next room at 9 last night I heard someone _____(knock /knocking) at the door just now .横线上应填什么?为什么 I heard someone sing in the next room. 为什么用 sing This morning,I heard someone _____(shout) Help,help! on my way to school.