问题描述：
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Jane was holidaying with her family in a wildlife park (when) she was bitten on the leg by a lion.
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这题选择中,为什么只能用when而不能用while?
Jane was holidaying with her family in a wildlife park (when) she was bitten on the leg by a lion.
**
这题选择中,为什么只能用when而不能用while?
问题解答：
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