1._____the bridge over the river ____(build)in the 1940s2.Keep on trying and you _____(have)a better result3.what ___________ (happen) to the earth in a hundred years

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1._____thebridgeovertheriver____(build)inthe1940s2.Keepontryingandyou_____(have)abetterresult3.what_

1._____the bridge over the river ____(build)in the 1940s2.Keep on trying and you _____(have)a better result3.what ___________ (happen) to the earth in a hundred years
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._____the bridge over the river ____(build)in the 1940s2.Keep on trying and you _____(have)a better result3.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.

你好:
1.(Did )the bridge over the river ( built ) in the 1940s
2.Keep on trying and you (will have ) a better result
3.what (will happen) to the earth in a hundred years