【题目】Was it through Li Ning, ________working at a high school, ________you got to know Wangke?
A.who I think it was; who
B.that I think were; which
C.who I think was; that
D.I think who was; which

【答案】C
【解析】第一空考查定语从句：修饰Li Ning，I think是插入语，所以填who I think was，who在定语从句中做主语，第二空填that是个强调句。句意是：你是通过在一所高中工作的李宁认识王珂的吗？选C。