He heard someone singing in the next room.请问这里的宾补sing为什么加的是ing?而不是ed或者是不定式?按道理来说,前面heard用过去式,后面sing也要用过去式啊?到底宾补在什么状态下要用什么式?

he heard someone call him.He stopped_______ he heard someone shouting “help!”否定句he __ __ __ shouting help! He suddenly heard someone ______for help.(call) 正确形式填空,//.说出原因,,,,,,, Our English teacher got ____(annoy)when he heard someone talking in class. Uncle Li stopped______the bicycle when he heard someone knocking at the door suddenly he heard someone _____(cry )for help.答案上是crying,为什么阿? All of a sudden,he heard someone shouting outside同义句 He heard someone ( ) help when he was walking along the river.中()中填call还是calling? 英语：请帮忙区别下列词组^O^Suddenly,he heard someone ( ) at the door.是填knock还是knocking 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 3.Someone was shouting.I heard it. 4.He was just falling asleep------he heard someone knocking at the door .A .while B.when C .before D.after It humiliated him when he heard someone question his talent.这句话有语法错误吗?如果把when改成that会不会好一点? 短文改错：one day ,a young man was walking along a path when he heard someone crying,one day ,a young man was walking along a path when he heard someone crying,help,help.He quickly ran to see what was happend.请说明错误并解释 i heard someone ( ) a song on my way home I heard someone was badly hurt in the t____ accident . I singing someone doing heard my honework while was I I heard someone is singing.(改为简单句)