The workers spent two years________the tunnel.A.to buildB.builtC.buildingD.to building
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C解析分析:spend(花费)的句型是:spend(time/money)in doing sth,其中的介词in可以省略,成了spend(time/money)doing sth,因此选C项。(延伸)spend的另外一个句型是spend time with sb,意思是“和某人度过一段时间。”如:The doctor spent much time with the patients.(这医生和病人在一起度过了很多时间)