观察下面的句子，找出句子中的先行词和引导词(即关系词)，并指出引导词在句子中作什么成分(主语、宾语还是表语)。最后，将句子译成汉语。

The gold medal which she won has been given to her old school．

先行词：________　关系代词：________

关系代词在从句中作________

译文：________________

根据句子意思，在下面句子的第一个空白处填入介词，在第二个空白处填入关系代词whom或which．

Wu Dong, ________　________ I went to the concert, enjoyed it very much．

根据句子意思，在下面句子的第一个空白处填入介词，在第二个空白处填入关系代词whom或which．

The stories, ________　________ this is one example, are well written．

根据句子意思，在下面句子的第一个空白处填入介词，在第二个空白处填入关系代词whom或which．

The old man has two sons, one ________　________ is a teacher．

根据句子意思，在下面句子的第一个空白处填入介词，在第二个空白处填入关系代词whom或which．

Recently I bought an ancient Chinese vase, the price ________　________ was very reasonable．