She was singing now 这句话对么?

She was singing now 这句话对么? she was heard singing song just now如果有确定的时间,如yesterday morning 是用heard to sing 还是heard singing she is singing now.I am singing now,too.同义句 The girl is singing now.She likes____(sing)verymuch. she is singing a song now 改为一般疑问句 ---- Where`s Mary now?Do you know?---- No,but I heard ____ in her room a few minutes ago.A.A.her singing B.her sing C.she was singing D.All the answers are right She heard someone was singing（改为简单句） she was attracted by the b______of his singing 为什么这里不要还原to?I heard the boy singing just now.The boy was heard singing just now. 把she is s inging now.和i am singing now 合成一句话 请问hear sb doing sth这里sb是主格还是宾格?还有一题-Where is Mary now?-I heard__in her room just nowA her singing B her sing C she was singing D All the answers are right请问该选什么?I heard__in her room just now刚才没打全 she started singing when she was three or four years old.什么汉语意思. Lisa wanted to be a p_____ star and now she is good at singing.填空 句子翻译:Now he was singing for the very first time! She was often heard ( ) in English.A.sing B.singing C.to sing i found that she was singing in the bedroom同义句 I saw that she was singing in the room改为同义句 求拜托she was chosen __China in the singing contestA,to represent B/repesented C.representing