It was in the lab was taken charge of by Professor Harris they did the experiment.A. whi

问题补充：

It was in the lab was taken charge of by Professor Harris they did the experiment.

A. which , that

B. that, where

C. whom, that

D. which, where

答案：

(答案→)A. which , that

B. that, where

C. whom, that

D. which, where

解析：考查定语从句和强调句型。第一空关系代词Which引导定语从句，在句中做主语。第二空that与it was构成强调句型。句意：就在由Harris教授负责的那个实验室里，他们做了那个实验。故A正确。