It was in the lab was taken charge of by Pro. Harris they did the experiment.
A. which; where
B. that; which
C. whom; that
D. which; that
网友回答
A. which; where
B. that; which
C. whom; that
(答案→)D. which; that
解析：考查含有定语从句的强调句型，第一空考查的是定语从句，从句中缺少主语，故用关系代词that/which，第二个空that为强调句型的标志。句意：就是在由Pro. Harris负责的实验室里他们做的实验。故选D。