试题题干
The year 1848 was the one()witnessed the beginning of California Gold Rush: the gold was first discovered at Slitter's Mill, in Coloma, California.
参考答案
正确答案:
试题解析
句意:1848年是见证加利福尼亚淘金热开始的一年:金子是在加利福尼亚州科洛马的斯莱特磨坊首次被发现的。空格引导定于从句,从句缺少主语,故用先行词that/which。