they ____the train until it disappeared in the distance 1.saw 2.watched 3.noticed 4.realized

No sooner had they reached the station ____the train left.这是个什么性质的句子 ____the 7:30 train.kuaia they ____the train until it disappeared in the distance 1.saw 2.watched 3.noticed 4.realized they walked ____the street. 倒装句11.No sooner had they reached the station ____the train left.A.untilB.whenC.thenD.than我选的Bwhy 同义句练习..(现在完成时）They went to the U.S.A.in 2000 and 2005.They____ ____ ____the U.S.A.____. They ____the house for 100,000 dollars. They ____the West Lake tomorrow.(visit) They went there by train.(对by train提问） look,they are getting up the train. They travelled by train 【改为否定句】 They are takeing the train every day ____the moment they are playing on the playground 填介词 Where are the keys?They are ____the door. They were hurrying to catch their train.They were ___ ___ ___ catch their train They were hurrying to catch their train.They were ___ ___ ___ to catch their train They usually go there on a train.They usually ( )a train ( )( ).要原因! 用单词适当形式填空 - ____the train ___（arrive）yet?-Y用单词适当形式填空 - ____the train ___（arrive）yet?-Yes,it___（arrive）ten minutes ago