问题描述：
_______________ night that I could hardly fall asleep.
A．So cold was it last B．So cold was it
C．So cold it was last D．So cold it was
参考答案是A,为什么不是C?
A．So cold was it last B．So cold was it
C．So cold it was last D．So cold it was
参考答案是A,为什么不是C?
问题解答：
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