She heard the front door open and heavy footsteps in the hall,这是新概念三原文,open的词性和成份子

She heard the front door open and heavy footsteps in the hallShe heard the front door open这句话有语法问题吗为什么不是 the door was opened,而直接用原型?希望高手能帮我分析一下. 1.she heard front door open and heavy foot steps in the hall可否改为she heard front door opening and heavy foot steps in the hall 2.he told me that he could not go to sleep one night because he heard a strange noise coming from the bar可否改 She heard the front door open and heavy footsteps in the hall,这是新概念三原文,open的词性和成份子 She heard the front door open and heavy footsteps in the hall.如果是动词为什么不用过去时态?.请分析这个英语句子：She heard the front door open and heavy footsteps in the hall：这个句子中的open是动词还是形容词？ She ()(sit)in front of the computer. she ___ washing the clothes after she heard the doorbell When she heard the bad news ,she c________sadly When she heard the exciting news,she danced with____(joy) when she heard the terrible news,she was scared.为什么不用heard of? 同义句转换After she heard the news ,she seemed to be angry.After she heard the news,she____ _____. The girl cried ( ) (sad) when she heard the bad news. She is in front of the door.(特殊划线部分是in front of the door) she was heard to in the roomShe was heard to ______(sang)in the room. She is in f_?__of the house.front 翻译：she postured in front of the mirror After hearing the song,she said what a wonderful song she_.Aheard Bhad heard Chas heard Dwould heard When Alice heard the news ,she was very excited. she heard a boy ___(cry) in the next room.