at the railway station 用at 还是in

请仔细阅读下面含动词不定式的句子,在横线上写出括号部分在句中分别作什么成分?1、We have got lots of things (to do).2、They tride (to help)the poor children in the countryside.3、The boy arrived at the railway stati at the railway station 用at 还是in The train is waiting at the railway station. The train got to the railway station at 5:00 pm.改为同义句:The train __ __ the railway station at 5:00 pm. 14.she saw her sister off at ___ last Friday.A.the beijing's Railway Station B.the Beijing Railway Station C.Beijing Railway Station D.the Station of Beijing's Railway 选哪个,为什么? They gave him a warm welcome at the railway station.以下被动语态都对吗?He was given a warm welcome at the railway station.A warm welcom was given him at the railway station. On arriving at the railway station,he found the train had left away.改错! at the Shanghai Railway Station,这里的the不应该删去吗 _ the railway station.on at in to选填什么? I arrived in London at last.The railway s___was big,black and dark. it is at (l ) five miles from here to the railway station. He forgot to tell me his a______ time.I missed him at the railway station. it is at (l ) five miles from here to the railway station What did he lost at the railway station (Would you tell me)改为宾语从句 you'd better go to see him off at the railway station是什么意思? We live a long way form the railway station为什么要用form ,而不是用at? what did he lose at the railway station?(would you tell me)间接引语 Imeet my sister in the railway station at 8:30 a.m.对画线部分（in the railway station）提问（ ）did you （ ）your sister at 8：30 a.m.