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