题目

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： 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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