问题描述:
That is a special day() we will never forget.
A)when b)on which c)in which d)/
为什么?请详细分析此题,如何理解为什么不选A
A)when b)on which c)in which d)/
为什么?请详细分析此题,如何理解为什么不选A
问题解答:
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