问题描述：
She is the woman.I wrote a letter to her.改为定语从句
变成定语从句是：She is the woman I wrote a letter to.
可以改为：She is the woman to whom I wrote a letter.
变成定语从句是：She is the woman I wrote a letter to.
可以改为：She is the woman to whom I wrote a letter.
问题解答：
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