Was it through Mary , ____ was working at a high school , _____ you get to know

题型：不详难度：来源：

Was it through Mary , ____ was working at a high school , _____ you get to know Tom ?

A．who, who

B．that, which

C．who, that

D．who, which

答案

C

解析

但是许多学生刚好首先排除了C项，他们认为:（1)非限制性定语从句不用关系代词that引导;（2)
强调句型It be + 被强调部分 + that (who)…中，who (that)前不能有逗号。
上述两点是对的，在此句中Was
it…that…也的确是强调句型，但句中的两个逗号不在强调句型中，它的作用是把非限制性定语从句who was working at a high
school与句子其它部分分隔开来。整句话的汉语意思是：玛丽在一所中学工作，你是不是通过她认识汤姆的？