【题目】—Where was the experiment carried out?
—It was in the lab built in the 30s_______Mr. Smith worked as an assistant professor
A.thatB.whichC.whereD.when
在线课程【答案】C
【解析】
考查定语从句。句意：——实验是在哪里进行的？——是在Smith先生担任助理教授的30年代建造的实验室里。此处为定语从句修饰先行词lab，且先行词在从句中作地点状语，应用关系副词where引导。故选C。