题目内容
【题目】 China’s high-speed railways(中国高铁)________ rapidly during the past few years. Now many foreign countries invite them to make contributions to building up their homelands.
A. have developed
B. developed
C. develop
【答案】A
【解析】
试题分析:根据题意可知用现在完成时have done的结构;句意:中国的高速铁路已经迅速在过去的几年中发展起来。现在许多国家邀请他们来建设自己的家园作出贡献。。结合句意,故选A
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