As we approached the village we saw many new houses____.A.bulit B.build C.being bulid D.building为什么不能选A?

As we approached the work site,the woAs we approached the work site,the workers were seen______the new house.A.buildingB.buildC.builtD.to built As we approached the work site,the workers were seen_As we approached the work site,the workers were seen_the newv house.A.buildingB.buildC.builtD.to build选了D,想问问为什么选A不选D As we approached the village we saw many new houses____.A.bulit B.build C.being bulid D.building为什么不能选A? As we approached the work site,the workers were seen ____the new house.A) building B) build C) built D) to build seen是看的过去式吧,那就是工人被. as the train approached the seaside town where I was going to spend my holid谁有这篇完型的答案和解析 My own happiness in the past often approached approach The subject may be approached from several direction. He approached the job with missionary zeal.fanyi 英语翻译The rough titration is carried out frist to determine the approximate end point.The titration is then repeated more accurately,with very careful addition of solition from burette as the approximate end point is approached.Two consisitent 1.We have __________ the company __________ the supply of TV Sets.A.approached with,in B.got in touch,inC.approached,for D.contracted with,for2.__________ please find a catalogue for our electric mixers,together with __________ specifications.A.Enclo 这三句英语说的是什么含义?1.On December 31,here to meet 2.I buy to go to South Korean the airplane ticket 3.even though The storm approached We also must continue to walk 请解释ought to have gone along 为什么to 后面有have呢,A policeman approached Jimmy and told him he ought to have gone along a side-street as Jumbo was holding up the traffic. we look the same as对吗 we furnish the information as stated As soon as the rain ______(stop),we'll leave. we will do the excrises as soon as possible.如上 翻译19.Fortunately the news as had as we expected [D89] ______ the city centre ,we saw a stone statue of about 10 metres in height.A.Approaching B.ApproachedC.To approachD.To be approached请帮忙翻译并分析