问题描述：
when we were arriving和 when were we arriving有什么区别?两个都对吗?
一道单选 …he eagerly asked when________.
A.had we arrived B.we had arrived C.were we arriving D.we were arriving
一道单选 …he eagerly asked when________.
A.had we arrived B.we had arrived C.were we arriving D.we were arriving
问题解答：
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