I heard someone __ for help while I was reading a novel at homeA cryingB cryC criesD to cry

I heard someone __ for help while I was reading a novel at homeA cryingB cryC criesD to cry 3.Someone was shouting.I heard it. he heard someone shouting “help!”否定句he __ __ __ shouting help! I singing someone doing heard my honework while was I 1.变为被动语态（1）He gave me a book.I __ __ a book.The book __ __ to me.（2）Someone heard Lucy play the flute just now.Lucy was __ __ __ the flute just now.（3）They saw her get on a bus.She was __ __ __on a bus.2.词形转换（1）Whe 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。 I heard some children __(sing) a song just now . 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