I didn'tknow there used be a new train station there in the past改错

问题描述:

I didn'tknow there used be a new train station there in the past改错

used后面加个to.there used to be一般指过去曾经有, 强调曾经, 美景不再, 如今已经没有了.句子有点不太合逻辑.