john said he would be at my house at seven o·clock我想不通 为什么要用at 用to不行吗 错在哪里?我问的是my house 之前的at

问题描述:

john said he would be at my house at seven o·clock
我想不通 为什么要用at 用to不行吗 错在哪里?
我问的是my house 之前的at