at the door 是状语吗

at the door 是状语吗 knock at the door before entering please这句话是时间状语从句吗?那句中只有KNOCK AT 一个动词?enter不是？ 是knocked at the door还是knocked on the door While two detectives were keeping guard at the door请问这里的guard at the door是固定搭配吗? 请问 ：The man knocked at the door.the door是宾语吗?这个句子中knocked at the door 是谓语,还是knocked at 是谓语,the door 做宾语 I am a doctor at the London hospital .at the London hospital是地点状语吗? There is a dog near the door.near the door是个地点状语那它修饰什么呢 in the doorway &at the door 意思是一样的吗? There was a loud knock at the door.(用时间状语从句合并成一个句子)She was answering the telephone.There was a loud knock at the door.(用时间状语从句合并成一个句子) I find the door openopen是看作宾补,还是door的定语,还是状语,为什么请依次分析 She was awaken by someone knocking at the door.算是动名词的复合结构还是状语啊? Wolf At The Door 歌词 knock at the door造句 Wendys at the classroom door . no cover at the door at the door 的意思 at the dear's door knock at the door 和 knock on the door有什么区别吗详解,谢