问题描述：
Is that you book in the lost and found case?
in可以换成to或on吗?为什么?
我问的是Is that you book in the lost and found case?不是in the lost and found case,回答完整一点拉.不然我还是一知半解的.
in可以换成to或on吗?为什么?
我问的是Is that you book in the lost and found case?不是in the lost and found case,回答完整一点拉.不然我还是一知半解的.
问题解答：
我来补答展开全文阅读