问题
选择题
They stayed with me three weeks, _____ they drank all the wine I had.
A．which
B．which time
C．during which time
D．during which
答案
答案：C
选C。which不是修饰三个星期，而是修饰前面整个主句。句意为：他们和我呆了三个星期，（在呆了三个星期这段时间里）喝光了我所有的酒。
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