1._the bridge over the river (build)in the 1940s

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1._____the bridge over the river ____(build)in the 1940s
2.Keep on trying and you _____(have)a better result
3.what ___________ (happen) to the earth in a hundred years

1.【Was】the bridge over the river 【 built】in the 1940s
翻译：河上的那座桥是建于20世纪40年代吗?
解析：in the 1940s,是过去的时间,所以使用一般过去时
因为bridge 和build 指被动关系,桥被建造,用被动语态,疑问句,直接把be动词放在句首就可以
2.Keep on trying and you【will have】a better result
翻译：继续努力你就会获得一个更好的结果
解析：and 这里表示递进.而且表示将来会发生的事情,使用一般将来时
3.what【will happen】 to the earth in a hundred years
翻译：一百年后地球上会发生什么?
解析：in a hundred years 是一百年后的意思,所以使用一般将来时.
再问： The police ___________(search) this area for the robbers at that time yesterday. 这个要怎么写？再比如说第三题如果happen后面是to the forest in China in the last 10 years的答案是不是也是一样？谢谢...
再答： The police【were searching】 this area for the robbers at that time yesterday. 解析： at that time yesterday，在昨天的那个时候，这个时间状语强调当时所发生的动作，所以使用过去进行时。再比如说第三题如果happen后面是to the forest in China in the last 10 years的答案是不是也是一样？ what【has happened】 to the earth in the last 10 year。 in the last 10 years 这是表示过去的时间状语，不能使用一般将来时，强调十年里发生的事情。应该使用现在完成时。

1._____the bridge over the river ____(build)in the 1940s A new bridge _________ (build) over the river last year. we can build a big bridge over the Huangpu River in two year Worker _____(build) a bridge over that river in the near fut 适当形式填空1.they_____[build]a new bridge over the huangpu river 1.Those workers are ____(build) a stone bridge over the rive The workers will build a new bridge over the river next year The government will build a new bridge over the river 改为被动语态 They have to build another bridge over the river.改为被动语态 Anot Some people ___(build)another bridge over the river now.It__ build,a ,bridge ,over ,last,river,the,they,year 连词成句 Zhejiang will build a bridge the Qiantang River.A.over B.on