问题描述：
定语从句关于关系副词Where和介词+ which的选择
The train_ i spend my holiays.
A.on which B in which Cwhere D that
我觉得A和C都可以,
The train_ i spend my holiays.
A.on which B in which Cwhere D that
我觉得A和C都可以,
问题解答：
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