你好.如果一定要用 that , 句子改写就必须是：let's meet at the same place THATwe met IN / AT yestoday. ==Let's meet at the same place. We met in / at that same place yesterday.O(∩_∩)O谢谢。可以告诉我原因吗？the same place as we did (did是助动词，用来省略完整的句子)==the same place THATwe met IN / AT yestoday（如果是that代替as,就说明that是定语从句的连接词。是定语从句的话，就必须是完整的句子------- the same place THATwe met IN ------we met in / at 就是完整的句子 。）