【题目】Nelson Mandela’s death may, in the short term, unite South Africa in ways ________ have never been seen before.
A．by which B．that C．in which D．who
在线课程【答案】 B
【解析】
试题分析：考查定语从句。句意：纳尔逊曼德拉的离世在短期来看，可能会前所未有地把南非人团结在一起。当先行词是ways时，定语从句用in which/ that/省略这三种形式来引导，故选B。