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完形填空,最好把整篇译文写出来,谢谢,快的我最后会加悬赏分Inbigcities,thestreetsareusuallyverybusy.Soyoucanftrainsunderthegroundoronarailabovethestreets.Theycarrypeopleqinandoutofthecity.Cana

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完形填空,最好把整篇译文写出来,谢谢,快的我最后会加悬赏分
In big cities,the streets are usually very busy.So you can f___trains under the ground or on a rail above the streets.They carry people q___in and out of the city.Can a train run over water?Yes,it can.There are many b___over the rivers.The trains can easily run over the water.There are also many tunnels u___rivers.The trains can go t___the tunnels swiftly.But it is not easy to b___the bridges or make the tunnels.Would you l___to take a maglev train in Pudong,Shanghai?
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find,quickly,bridges,under,through,build,like