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

Was she frightened when she heard a snad? when she heard the terrible news,she was scared.为什么不用heard of? she was heard to in the roomShe was heard to ______(sang)in the room. When Alice heard the news ,she was very excited. I HEARD THAT SHE WAS LEAVING干吗加THAT? I heard that she was singsing at that time. She heard someone was singing（改为简单句） she was heard to be reading a poem帮忙翻译she was heard to be reading a poem He was happy when she ___ this1.heard from2.heard of3.heard4.listened She was in a frenzy of grief when she heard that her child was missing. While she ( )TV,she ( )a sound outside the room.A was watching,was hearing B watched,was hearing C watched ,heard D was watching,heard She was cocking when she heard someone ( )knock at the door While she was in the kitchen, she heard someone s_ for help I heard she was twenty,but she must be least thirty years old.哪错了 1.She was very ____when she heard the news.(exciting) 2.Jinmao Building is one Sandy was very c___ this morning but felt c___ when she heard she failed in 急 Sandy was very c___ this morning but felt c___ when she heard she failed in she was unhappy when she heard the news.（ ）A.was she?B.wasn't she?she was unhappy when she heard the news是否定句还是肯定句啊?