问题
选择题
A good friend of mine from ______ I was born showed up at my home right before I left for Beijing.
A．how
B．whom
C．when
D．which
答案
答案：C
本题对学生来说较难,不容易看的懂.本句意为”就在我准备去北京前,我儿时的一位好朋友到我家里来了.”
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