During my stay there,it was very cold in winter.The temperature sometimes_____(drop)to -15℃.
问题描述：
During my stay there,it was very cold in winter.The temperature sometimes_____(drop)to -15℃.
答案说是drops但我觉得应该是过去式!求答案求理由!谢谢!
答
dropped
时态和前一句,it was very cold 保持一致,用过去时态
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