题目内容
It was in the factory ______ was taken charge of by Mr. Green_______ they did the experiment.
A. that; where B. which; which C. where; that D. which; that
D

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题目内容
It was in the factory ______ was taken charge of by Mr. Green_______ they did the experiment.
A. that; where B. which; which C. where; that D. which; that
D