They travelled by train 【改为否定句】

They travelled by train 【改为否定句】 they have all been put to shame by a boy who,while playing truant,travelled 1600 miles.请问为什么是travelled,过去分词形式,我觉得travel和boy是主动关系,应该用travelling然后travelled是非谓语吗, 短文改错 During the weekend I travelled by the air for the first time in my life. I generally tr...短文改错During the weekend I travelled by the air for the first time in my life. I generally travel by train or by bus. It's all cheaper and sa 英语翻译They have all been put to shame by a boy who,while playing truant,travelled 1600 miles. They have all been put to shame by a boy who,while playing truant,travelled 1,600 miles.句子成分 He travelled there by plane如何翻译 They have all been put to shame by a boy who,while playing truant,travelled 1600 miles.while后面为什么用ing 形式, 这个who能换成whom么?为什么They have all been put to shame by a boy who,while playing truant,travelled 1600 miles. have they travelled on a train?作出否定回答 They had not travelled far when their car broke down. TR They travelled ____ the steam to find out where it had got polluted .A.along B.near C.down D.They travelled ____ the steam to find out where it had got polluted .A.along B.near C.down D.by为什么选C请详解,并翻译这句话, we travelled by night as well as by day.为什么用by at为什么不行 选哪个,请给出原因.A.to travel B.travelled C.travel D.travellingPeople______long distances frequently have to decide whether they would prefer to go by land,sea or air (1)l saw some young men running in the park.They looken really healthy and_____(act)单词适当形式理(2)we travelled to New York City by air.保持句意we________a__________to New York City理由 They have all been put to shame by a boy who,while playing truant,travelled 1600 miles.句子成分He hitchhiked to Dover and,towards evening,went into a boat to find somewhere to sleep.句子成分结构分析 Have you ever travelled by plane before?（否定回答） NoHave you ever travelled by plane before?（否定回答）No,I havent.I have_____travelled by plane before. We're safer in a train than we should be if we （travelled）any other way.为什么不是.（travelled）by any other way.为什么不用by?