单选题
1.00分
Over the past ten years, China has__________a series of great changes in its infrastructure and econ...
Over the past ten years, China has__________a series of great changes in its infrastructure and economy.
参考答案: A
参考解析: 考查动词辨析。witness意为“见证”,可以用物作主语。句意为“过去十年,中国在基础设施和经济方面都发生了一系列的变化”。故选A。