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 |
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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 |
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