炎帝和黄帝为争夺中原地区，在“阪泉之野”展开大战。阪泉之野位于今天的      。

Good heavens! There you are! We＿＿＿anxious about you, and we ＿＿＿you back throughout the night.

A．are； expect

B．were； had expected

C．have been； were expecting

D．are； were expecting