问题
选择题
It was in the lab____ was taken charge of by Mr Harris ____ they did the experiment.
A．which; that
B．that; which
C．which ; where
D．that; who
答案
答案：A
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It was in the lab____ was taken charge of by Mr Harris ____ they did the experiment.
A．which; that
B．that; which
C．which ; where
D．that; who
答案：A