Question

【题目】The China Railway Tunnel Group has spent three years _________ that tunnel in Uzbekistan.

A. to buildB. builtC. buildingD. build

Answer 1

【答案】C

【解析】

句意：中国铁路隧道集团已经在乌兹别克斯坦建造了三年的隧道。A. to build动词不定式；B. built过去式/过去分词；C. building动名词/现在分词；D. build动词原形。根据固定搭配spend…（in）doing sth 花费时间/金钱做某事，可知，此空应填building,故选C。