问题补充:
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
答案:
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。