请选择正确的连接词填入以下空白处,注意大小写:and, and, while, but, but,after all, because. 有一天, 他为了一件要紧的事, 要搭火车到上海去。 他从从容容地走到火车站, 迟了两分钟, 火车已开走了。 他白瞪着眼, 望着远远的火车上的煤烟, 摇摇头道 : “只好明天再走了 , 今天走同明天走, 也还差不多。 可是火车公司未免太认真了 。 八点三十分开, 同八点三十二分开, 不是差不多吗? ”他一面说, 一面慢慢地走回家, 心里总不明白为什么火车不肯等他两分钟。 One day, he wanted to go to Shanghai by train on urgent business. 1) _____ he arrived at the railway station unhurriedly only to find the train already gone, 2) ______ he was two minutes late. He stood staring helplessly at the smoke belching from the diminishing train, 3) _____ shook his head , “Well, all I can do is leave tomorrow. 4) _____, today and tomorrow are about the same. 5) _____ isn’t the railway taking it too seriously? What’s the difference between departing at 8:30 and 8:32?” He walked home slowly 6) _____ talking to himself 7) _____ kept puzzling over why the train hadn’t waited for him for two minutes more.