问题
选择题
At last we found the hole in the wall _______ the mouse got into the house last night.
A．in which
B．which
C．through which
D．by which
答案
答案：C
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At last we found the hole in the wall _______ the mouse got into the house last night.
A．in which
B．which
C．through which
D．by which
答案：C