问题
选择题
It was in the lab, ________ was taken charge of by Professor Curie, _______ they did the experiment.
A．where; that
B．that; that
C．which; that
D．which; where
答案
答案：C
第一空考查非限制性定语从句，先行词为the lab，从句中缺少主语，所以用which，第二空是强调句型，用that是强调句型的标志。句意：就是在由居里教授负责的实验室里，他们做得试验。所以选C。