题目内容

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
D
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。
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