A：who knocked at the door?B:I thought is was Jack.这里为什么用was,而不用is是不是当对方不在场的时候也用is的过去式was.

She went d_____to see who knocked at the door. who was knocking at the door just now?还是who knocked at the door just now? Mr.White pickde up a stone and knocked the man who insulted his wife right out at the knock 短语The little boy run for the football and ___a man standing there.A.knocked down B.knocked at C.knocked into D.knocked 是knocked at the door还是knocked on the door The last man stayed at his house,a person knocked at his door.有什么深意 The boy ___ the ball and ____ a man.A.run to,knocked into B.ran to,knocked upon C.ran for ,knocked into D.ran for,knocked at选哪个?为什么?请翻译. knocked at 英文同义句转换.A man knocked at the door when he was watching TV.A man knocked at the door _____ he was watching TV Who knocked at the door?I thought it was Jack.回Who knocked at the door?I thought it was Jack.回答当中为什么有两个谓语,一个句子的基本结构是一个主词加一动词. Somebody knocked at the door while I___Somebody knocked at the door while I__A.started reading Bwas doing some reding 为什么选B 不选A呢? one day ,a little boy selling magazines knocked at the old man's door 填副词或介词He did not know how to fight,but he knocked the boxer ----------.This flowerpot is broke.who knocked it -------.I knocked------early yesterday and went to a football match.Listen!Someone is koncking------the window. A：who knocked at the door?B:I thought is was Jack.这里为什么用was,而不用is是不是当对方不在场的时候也用is的过去式was. the wolf,a little out of breath form running,arrived at grandma‘ house and knocked at the door.成话吗 A policeman___the thief and catch him (knocked at/knocked out)应该选什么?(今晚答出者加悬赏)The manager knocked 10%___the charge.A:off B:over C:out D:of 选什么? who saw an old man ______by a taxia knock downb knocking downc knocked down d to be knocked down选哪个the police are looking for anybody who saw an old man ______by a taxi the man knocked l_ at the door now.