stay a long time对还是stay for a long time对?还是都对?为什么?

stay a long time对还是stay for a long time对?还是都对?为什么? stay a long time与stay for a long time有什么区别请讲清楚. It's a long time since还是It has been a long time since 应该是take a long time 还是take long time还是两个都对 she's kept computer for a long time对for a long time 提问 they are going to stay in Beijing对 for a long time 提问 He walked a long time 对 还是he walked long time! everybody except jim------(stay) there for a long time We ___(stay)on the farm for a long time. Did you stay there for a long time?到底是for a long time 还是for long time?我记得好像有个a来着.如果有的话,是解释为【一段时间】吗? It's been a long time since I last saw a film.还是It's a long time since I last saw a film. it's a long time什么意思 It's raining for a long time? It takes a long time to do sth.还是It costs a long time to sth.哪个对,还是都对? stay,with stay,with mei want to stay with you and look at you for a very long time “一段时间”应该说“a few time”还是“a long time”?为什么? lt's a long time since i last see you还是lt was a long time since i last see you? 写I haven't seen you for long time .对吗?还是写成写I haven't seen you for a long time .呢?还是说两个都对?