问题

It was in the lab_____ was taken charge of by Mr.Harris_____ they did the experiment.[ ]
A: which; that
B: that; which
C: that; whom
D: which; where
B: that; which
C: that; whom
D: which; where
正确答案是:
同类题型
was known to all , Willian had brokenhis promise ______ he would give us a rise.
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