问题:
It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment.
A.which, that
B.that, where
C.where, that
D.which, where
It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment.
A.which, that | B.that, where |
C.where, that | D.which, where |
参考答案: